JP3436995B2 - Combustion equipment, its inspection device and inspection method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion apparatus suitable for automatically setting numerical values for control conditions of combustion equipment such as a water heater and a bathtub, and inspecting the operating state, and an inspection device and inspection equipment for the combustion equipment. It is about the method.

[0002]

2. Description of the Related Art In conventional combustion equipment, for example, capacity setting of a proportional valve (a valve that controls the amount of gas supplied to the burner by the amount of valve opening) according to the maximum and minimum combustion capacities of a water heater The setting of the maximum valve opening drive current that corresponds to the maximum valve opening amount with the maximum combustion capacity and the minimum valve opening drive current that corresponds to the minimum valve opening amount with the minimum combustion capacity is performed manually. Even when inspecting the operating condition of the bath heater actuator or sensor, operate the water heater or bath heater according to the operation program, and wait until it reaches the step operation position of the sequence program in which the actuator operation to be inspected and sensor signals are read. Then, the operating state of the actuator to be inspected is checked, the sensor output data of the object to be inspected is monitored, and the presence or absence of a failure is manually inspected.

[0003]

However, it is very inefficient to manually set the numerical values of the control conditions of the combustion equipment such as the setting of the capacity of the proportional valve, and it is easy to make an error in the numerical setting, and the reliability is improved. There is a problem on.

Also, when inspecting an actuator or the like of a combustion device, it is necessary to operate the appliance in accordance with the sequence program and wait until the program position where the inspected actuator or the like operates is in effect, so the inspection takes too much time. There was a problem.

In order to solve such a problem, the applicant has previously proposed and prototyped a new type combustion device and its inspection device. As shown in FIG. 4, this prototype device (unpublished) connects the combustion device side and the inspection device side by communication means, and the inspection device side configures the combustion device with the instruction of the inspection program. Sensors and actuators (eg combustion fans,
Multiple commands that execute one operation (operation) by one command (operation command) for a component such as a water flow control valve, a proportional valve that variably adjusts the amount of gas supplied to the burner, etc., with the password as the head The operation command is sent to the combustion equipment side via the communication means.

The combustion equipment side is provided with an operation control section for controlling the combustion operation according to an operation program, and this operation control section is capable of writing and reading in which various kinds of information for performing combustion control are stored. Possible memory RAM (Rand
om Access Memory) and a memory ROM (Read Only) that stores a decoding program for decoding the command sent from the inspection device and finding the address of the RAM in which the information corresponding to the decoded command is written. Memory)
And a command decoding section having.

According to this prototype device, the inspection device side can forcibly issue a command to selectively operate the inspection target element of the combustion equipment.
It is not necessary to wait until the element to be inspected reaches the position of the operating program in which it operates, and the inspection time can be shortened. Also, for example, in the operation operation of the equipment, if the data does not move to the next operation operation unless the data is written in the memory, the command is forcibly written in the memory to write the data, It is now possible to provide an unprecedented inspection system, such as being able to move to the operation described above and inspect the operation.

However, in the proposed apparatus, since the command created on the inspection device side is a system in which each constituent element of the combustion equipment is designated and one command is executed, the combustion equipment is inspected. If you do, you need as many commands as you want to execute, and a typical water heater requires as many as 80 commands.

To give a specific example, for example, when it is desired to turn on the operation of the combustion equipment, for example, from the inspection device side, 3
The command of the code 101 is sent, and on the combustion equipment side, the command of the command 3101 is decoded by the decoding program in the ROM of the command decoding unit, and the operation ON in the RAM in which the information of the decoded command is stored. The address is searched for, and the operation of the combustion device is turned on according to the information in the RAM (operation-on data) in the searched address. Further, when it is desired to know the hot water outlet temperature of the water heater, for example, a command with a code 6201 is issued from the inspection device side, and the combustion device side similarly decodes the command of the command 6201 to determine the hot water outlet temperature in the RAM. Information on the hot water temperature is obtained by searching the stored address and reading the information on the address. in this way,
In order to inspect the combustion equipment, it is necessary to send multiple commands to the combustion equipment from the inspection device side, and the command decryption part of the combustion equipment has a decoding program to decode these many commands. Since the data must be stored in the ROM, there is a problem that the memory capacity of the ROM is inevitably increased and the device cost is increased.

Further, as the development of combustion equipment advances, new commands increase every time an inspection item is additionally changed,
There was a problem that the decryption program for decrypting this new command had to be changed each time.

The present invention has been made to solve the above problems, and an object of the present invention is to enable inspection of combustion equipment and the like with as few commands as possible, and to reduce the ROM capacity of the command decoding unit on the combustion equipment side. In view of the above, it is an object of the present invention to provide a combustion device, an inspection device and an inspection method therefor, which can cope with additional changes in items such as inspection without changing the program of the command decoding unit.

[0012]

In order to achieve the above object, the present invention is constructed as follows. That is, a combustion device inspection device of the present invention is a combustion device inspection device that is connected to a combustion device via a communication unit and transmits an interrupt operation command of the combustion device from the outside to the combustion device via the communication unit. , A list holding unit that holds a list of addresses of a control memory that stores operation information that operates according to the operating program of the combustion device and a list of relational data of information stored at each address, and a list holding unit of the list holding unit. A command creating unit that creates an interrupt operation command to the combustion device by referring to the relational data that it holds, and a command sending unit that sends the interrupt operation command created by this command creating unit to the combustion device via the communication means. The instruction creating unit has address designation information of the control memory and any one of reading, rewriting, and rewriting information cancellation of the designated address information. Is configured as characterized in that a structure creating each interrupt operation command by a combination of the command.

Further, it is also a feature of the present invention that the interrupt operation command is formed by arranging address designation information in series after the command starting with the command.

Further, the combustion equipment to be inspected of the present invention is a combustion equipment connected to the above-mentioned inspection device through a communication means, and a command discriminating section for discriminating a command of an interrupt operation command added from the inspection device. And a signal processing unit that performs signal processing of a specified address of the control memory according to the command of the determined command.

Furthermore, the method for inspecting combustion equipment according to the present invention is
A method of inspecting a combustion device, which transmits an interrupt operation command of a combustion device from the outside to a combustion device through a communication means, operates the combustion device in accordance with the interrupt operation command, and inspects the combustion device according to an operation program of the combustion device. It holds a list of the relational data of the addresses of the control memory storing the operation information to be operated and the information stored at each address, and refers to the relational data held by this list holding unit to refer to the control memory. Each interrupt operation command is created by the combination of the address specification information and the command of reading, rewriting, or cancellation of the rewriting information of the specified address information, and the created interrupt operation command is sent to the combustion equipment via the communication means. The data in the control memory that has been sent and processed in the specified address of the control memory according to the command of the command is processed. Thus it is configured as characterized by inspecting the combustion equipment is operated combustion equipment.

[0016]

In the present invention having the above structure, from the inspection device side,
When an interrupt operation command with a command as the head and the address specification information arranged after that command is sent to the combustion device, the combustion device side reads the command or the data It is determined whether the command is a rewrite command or a cancel command for rewritten data. Then, signal processing is performed for the address of the control memory designated by the address designation information according to the determined instruction.

For example, when the command of the command is the reading of information, the information of the designated address of the control memory is read,
When rewriting data, the data (information) at the specified address of the control memory is rewritten, and when the command command is information cancellation, the previously rewritten data is canceled to restore the original data. In the present specification, “rewriting” is used to mean rewriting previous data to another data and also writing new data with an address.

According to the present invention, in response to an interrupt operation command from the inspection device side, the combustion device side handles either reading or rewriting of the control memory or canceling rewriting information, and reading or rewriting information. All the inspections, the setting of the control data, the data correction, and the like are performed by only having a decoding program that identifies the three commands for canceling the rewriting information.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. Hereinafter, in order to facilitate understanding of the description of the present embodiment, FIG. 3 shows a model example of the combustion equipment to be inspected by the inspection device of the present embodiment. (A) of the figure shows a capacity-switching type water heater, in which the water entering from the water supply pipe 1 is heated by the combustion thermal power of the burner 2 to pass through the hot water heat exchanger 3 to be turned into hot water. The hot water is guided to a desired hot water supply place such as a kitchen through the hot water supply pipe 4.

The control device 5 rotates the combustion fan 7 when receiving a water incoming signal from the flow rate sensor 6, and opens at least one of the solenoid valve 8, the proportional valve 10 and the capacity switching valves 11a and 11b in the gas supply passage 19. , The igniter electrode 12 is driven to perform point ignition, and after the flame is detected by the frame rod electrode 13, the outlet temperature detected by the outlet temperature sensor 15 is the remote control.
The valve opening amount of the proportional valve 10 is controlled so that the set temperature set by 14 is reached, and at the same time, the rotation control of the combustion fan 7 is performed according to the combustion amount, and the hot water supply operation is controlled. In controlling the hot water supply operation, the control device 5 switches the capacity switching valves 11a and 11b according to the required heat amount.

When the required amount of heat is small, the capacity switching valve 11
When only a is opened, one-sided combustion of the A side of the burner 2 is performed. When the required heat amount is large, the capacity switching valve 11b is further opened to perform multi-sided combustion of the A side and the B side. In the figure, 9 is a fan rotation detection sensor for the combustion fan, 16 is a water temperature sensor, and 17 is a water temperature sensor.
Indicates a water quantity control valve for adjusting the water quantity.

FIG. 3 (b) shows a bath kettle, and the same parts as those of the water heater shown in FIG. 3 (a) are designated by the same reference numerals. This kind of bath can be remote controller 14 etc.
When the reheating operation is commanded, the control device 5 rotates the circulation pump 20 of the reheating circulation pipe 18 to circulate the hot and cold water in the bathtub 21 through the reheating circulation pipe 18. When the running water switch 22 detects the flow of hot water, the control device 5 rotates the combustion fan 7, opens the solenoid valve 8, burns the burner 2 by point ignition, and circulates the hot water circulating through the reheating heat exchanger 23. The water is heated to reheat the hot water in the bathtub 21. And
When the bath temperature detected by the bath temperature sensor 24 reaches the bath set temperature set by the remote controller 14, the reheating operation is stopped.

FIG. 3 (c) shows a combined water heater having a reheating function, and the hot water supply heat exchanger 3 side performs the same operation as shown in FIG. 3 (a) to perform hot water supply operation. Further, on the reheating heat exchanger 23 side, the hot water in the bathtub 21 is reheated by performing the same operation as that of the bath kettle shown in FIG. The hot water supply and the reheating operation are performed by the control device 5, and the control device 5 is a pouring valve such as a solenoid valve.
By opening 25, the hot water produced on the side of the hot water supply heat exchanger 3 is reheated and dropped into the bathtub 21 through the circulation conduit 18 to fill the water, and a water level sensor using a pressure sensor or the like is provided. When the water level of the filling water reaches the set water level set by the remote controller 14 etc. by 26, the pouring valve 25 is closed to stop the filling water, and then the circulation pump 20 is started to start the reheating operation. It is done.

FIG. 1 shows a block configuration of a combustion device and its inspection device according to this embodiment. In the figure,
Reference numeral 27 denotes a combustor such as a water heater and a bath kettle shown in the model example, and 28 denotes an inspection device composed of a microcomputer, a personal computer or the like. This inspection device is fixedly installed on the equipment side for inspecting products at a combustion equipment manufacturing plant, or has a portable device configuration for inspecting combustion equipment installed in each home. ,
It is configured in an appropriate form. The inspection device 28 is provided with an interrupt controller 60. The interrupt control unit 60 has a function of setting a numerical value of a control condition of the combustion device and giving a command for an inspection to the combustion control unit 30 of the combustion device 27. The interrupt command output unit 31 and the data reading unit 32 are provided.
A data output unit 33, an interface 34, a mode changeover switch 35, a data determination unit 36, a data correction unit 37, an external command / drive unit 38, an external response detection unit 39,
It has a notification unit 40 and a data input unit 42.

The interrupt command output unit 31 has a memory 44, a list holding unit 70, a command creating unit 71, and a command transmitting unit 46. The memory 44 stores a program (for example, an inspection program) for outputting an interrupt operation command for setting control conditions of the combustion equipment and inspecting various constituent elements of the combustion equipment. In the present embodiment, the interrupt operation command is formed by a signal serial array of commands and address designation information.

The command means a processing command of the control memory 45 such as RAM on the combustion equipment side. In the control memory 45, each constituent element of the combustion device 27, for example, the flow rate sensor 6, the fan rotation detection sensor 9, the frame rod electrode 13, the hot water temperature sensor 15, the incoming water temperature sensor 16 of the combustion device shown in FIG. , Running water switch 22, bath temperature sensor 24, water level sensor
Various sensors such as 26, solenoid valve 8, proportional valve 10, capacity switching valves 11a and 11b, igniter electrode 12, water amount control valve 17,
Control information of each component is stored with an actuator such as the circulation pump 20 and the hot water supply valve 25 as a component, and the command issues a processing command of the control information of these control memories 45. In this embodiment, commands are classified into the following three types.

The first type of command is a control memory
The second type of command is to instruct rewriting (including writing) of the stored information in the control memory 45, and the third type of command is to control The instruction is to cancel the rewritten information (data) in the memory 45 and restore the rewritten data (information).

The specified address information in the interrupt operation command is
It is information that specifies the address of the control memory 45 that performs signal processing according to the command of the command.

The list holding unit 70 holds a list of what information is stored in each address of the control memory 45. The command creating unit 71 creates an interrupt operation command required by the inspection program according to the inspection program (interrupt program) stored in the memory 44 by referring to the list of the list holding unit 70. For example, if the inspection program is requesting to read the hot water outlet temperature,
The address of the storage position of the hot water temperature in the control memory 45 is detected by the list of the list holding unit 70, and the detected address is arranged in series next to the command of the read command as the address designation information to create the interrupt operation command. The command transmitting unit 46 transmits the interrupt operation command created by the command creating unit 71 to the data output unit 33. When transmitting this interrupt operation command, a password is added before the command, if necessary. The password is a signal that notifies the start of the operation command.

The data reading section 32 reads the unique data (ID data) of the combustion equipment to be set or inspected. This ID data includes, for example, product type, model, hot water supply capacity,
Exhaust variation, gas type, inspection standard value, inspection target item, inspection standard and specification data such as tolerances, etc. This ID data is input by the ID data input unit 41, by keyboard key operation, or by barcode input, Or input by card input such as memory card,
The input data is read by the data reading unit 32, and this read data is added to an appropriate section such as the interrupt command output unit 31. The data output unit 33 receives an interrupt operation command from the interrupt command output unit 31 via the interface 34 and a communication cable 61 as a communication means.
Is added to the combustion control unit 30 of the combustion device 27 via the.

FIG. 2 shows the interrupt controller 60 side and combustion equipment.
27 shows the details of the cable connection of the combustion control unit 30 side of 27. In this embodiment, a 6-core signal line is used as the communication cable, the first core signal line of these 6 cores is a ground (GND) line, and the second core line is a clock signal line. The third core line is the signal line TxD for command transmission of the interrupt operation command, and the fourth core line is the signal line for the response to the command sent from the combustion control unit 30 side to the interrupt control unit 60 side. RxD line, 5th core and 6th
The core line is the line of the loop path through the mode changeover switch 35, and in the present embodiment, the mode changeover switch 35
Is constituted by a hard switch, and by inserting a pin, the mode changeover switch 35 is turned on and the loop path is closed.

When the mode selector switch 35 is turned on, that is, when the loop path is short-circuited, the combustion control section 30 operates from the operation mode based on the operation of the combustion control operation program to the interrupt operation command. It is configured to switch to the (inspection mode), and to switch from the interrupt mode to the operation mode when the pin is extracted and the loop path is opened and opened.

The external sensor 43 shown in FIG. 1 is a sensor for inspecting and correcting (calibrating) the sensor used in the combustion equipment. For example, hot water discharged from the water heater shown in FIG. 3 (a). When the temperature sensor 15 and the flow sensor 6 are inspected, an external temperature sensor for calibration is attached to the conduit connected to the hot water supply pipe 4, and a calibration external temperature sensor is attached to the conduit connected to the water supply pipe 1. An external flow meter is connected. And external command
The drive unit 38 issues an instruction to detect (read) the outlet heated water temperature to an external temperature sensor which is an external sensor, and issues an instruction to read the detected flow rate to an external flow rate sensor. These commands are performed in response to commands based on the inspection program output from the interrupt command output unit 31, and the signal of the external sensor 43 read by the operation of the external command / drive unit 38 is detected by the external response detection unit 39. And added to the data determination unit 36.

The data judging section 36 detects the detection signal (the detected temperature or the detected flow rate in the above example) of the external sensor 43 obtained from the external response detecting section 39 and the sensor 47 (in the above example, in the same combustion device 27 as the detection target). The sensor detection signal read from the control memory 45 of the hot water temperature sensor and the flow sensor) is used as an external sensor.
43 is compared as a reference sensor to determine whether or not the sensor 47 used in the combustion device 27 is normal. If the difference between the detection value of the sensor 47 used in the combustion device 27 and the detection value of the external sensor 43 is a difference within a predetermined allowable range, it is determined to be normal, and if it is outside the allowable range. Judge as defective. Then, when the command of the inspection program requests the notification of the determination result, the determination result of the inspection target sensor is displayed on the display unit of the notification unit 40 including the liquid crystal screen and the like. Note that the notification of the notification unit 40 is not limited to screen display, and other forms of notification such as a buzzer and a lamp may be performed as necessary. The notification unit 40 is not necessarily integrated with the inspection device,
Also, the number is not limited to one.

When the command of the inspection program requires data correction, the data correction unit 37 controls the control memory according to the detection value of the external sensor 43 and the interrupt operation command of the sensor 47 used in the combustion equipment 27. The difference from the sensor detection value read from 45 is calculated, and the correction amount of the deviation of the sensor 47 of the combustion device with respect to the external sensor 43 is calculated and calculated, and the calculated correction value is burned via the data output unit 33. machine
It is supplied to the combustion control unit 30 on the 27 side. This correction value is written in the setting data memory 54 on the combustion control unit 30 side, the detection value of the sensor 47 is corrected by the correction calculation unit (not shown) on the combustion control unit side, and based on this corrected sensor signal. The combustion operation is controlled.

The combustion control unit 30 on the side of the combustion device 27 includes a data input unit 48, a main operation control unit 50, a command / drive unit 51,
It has a data output section 52, a memory clear command section 53, a setting data memory 54, and a monitor signal input / output section 55.
The data input unit 48 receives an interrupt operation command sent from the interrupt control unit 60 side through the interface 34 and adds it to the main operation control unit 50.

The main operation control unit 50 has a built-in operation program for controlling the normal combustion operation of the combustion device 27, and the combustion operation is performed according to the stored information (stored data) in the control memory 45 corresponding to the request of this operation program. Control.

The control memory is provided in the main operation control unit 50.
There is a 45, a command discrimination unit 72, and a signal processing unit 73, and the command discrimination unit 72 decodes the operation command signal sent from the inspection device 28 side. In decoding this, first, the command is discriminated. For example, code A is a read command for information, code B is a command for rewriting information, code C is a command for canceling rewrite information, and decoding data (decoding program) of three commands is given. When the signal is the A012 signal,
From the beginning A, it is deciphered that it is an information read command, and by the next address designation information 012, the control memory 45
Decode it as instructing to read the information (data) at address 12.

When the operation command signal is B051, the command B at the head determines that the command is an information rewriting command, and the next address designation information 051 causes the information (address 51) of the control memory 45 ( Decode as a command to rewrite (data). Similarly, the interrupt operation command is C168.
If it is, the command C at the beginning determines that it is a cancel command for the previously written information, and the next address designation information 168 cancels the information at address 168 in the control memory 45, and the original data before data rewriting is canceled. Decode it as a command to return to information.

The signal processing unit 73 performs signal processing of the designated address of the designated control memory 45 according to the command of the command decoded by the command discrimination unit 72 and the information of the address of the command target of the command. That is, if the command is a read command, the memory information at the specified address is read, if the command is rewriting information, the information at the specified address is rewritten, and if the command is a command to cancel rewriting information, The signal processing of canceling the information of the designated address rewritten in step (1) and returning to the data before rewriting is performed.

In this embodiment, when the command is an information rewriting command, a new address is set to a free address in the control memory 45 in which no information is written, and this new setting is made. Write the rewriting data to the empty address, leave the original information of the same address in the control memory 45 as it is, and after that, when a read command of the information of that address is added, the address of the rewritten one When the command to cancel the rewriting information of that address is issued after that,
The newly written information is erased, and the original information at the same address is restored.

The main operation controller 50 receives a mode switching signal from the mode switching switch 35, that is, when a pin is inserted into the hard switch shown in FIG. 2 and the mode switching switch 35 is turned on to short-circuit the loop path. Switching from the operation mode according to the operation program to the interrupt mode (inspection mode) that operates according to the interrupt operation command is performed. By this mode switching, the main operation control unit 50 performs operation control according to the command request of the interrupt operation command. On the other hand, while the main operation control unit 50 is operating in the interrupt mode, when the switch-off signal is applied from the mode switch 35, that is, the pin of the hard switch is pulled out and the mode switch is turned off. Then, the operation mode is switched from the interrupt mode to the operation mode.

The memory clear command section 53 is a setting data memory when the switch-off signal is applied from the mode changeover switch 35, that is, when the operation mode of the main operation control section is switched from the interrupt mode to the operation mode.
Output a memory clear command to 54.

The controlled element 56 constitutes the combustion device 27, for example, the solenoid valve 8 of the apparatus shown in FIG. 3, the proportional valve 10, the capacity switching valves 11a and 11b, the water amount control valve 17, the circulation pump 20.
It means an actuator such as. When the inspection program on the inspection device 28 side requests the drive operation of the controlled object element 56, the inspection device is specified by specifying the address of the control memory 45 in which the drive information of the controlled object element of the driven object is stored.
The command creation unit 71 on the 28 side creates a command for a read command designating the address and adds it to the main operation control unit 50 side. At this time, the main operation control unit 50
The command determining unit 72 decodes the interrupt operation command, and the signal processing unit 73 reads the drive information of the control target element at the specified address and drives the control target element of the drive target. For example, when the rotation start of the combustion fan 7 is requested, the command of the read command and the read address thereof are designated, so that the information is read from the storage address of the combustion fan start information of the control memory 45.
The rotation of the combustion fan 7 is started.

The monitor signal input / output unit 55 fetches the detection value of the sensor 47 and stores the fetched data in the designated address of the control memory 45. The data output unit 52 transmits the information (monitor information) read from the control memory 45 to the interrupt control unit 60 side through the communication cable 61 which is a communication means,
Signal processing according to the inspection program, for example, data determination by the data determination unit 36 and the data correction unit 37 as described above.
The data correction is carried out, and the monitor data is displayed on the notification unit 40 by displaying, for example, characters and symbols.

This embodiment is constructed as described above,
Next, an operation example using the apparatus of this embodiment will be briefly described. First, by connecting the inspection device 28 side and the combustion device 27 side with the communication cable 61, turning on the power supply of the device 28 side and the combustion device 27 side, and turning on the mode changeover switch 35,
The combustion control unit 30 switches from the operation mode to the interrupt mode. By advancing the inspection program in this state, an interrupt operation command is created by the command creation unit 71 in response to the request of the inspection program, and the interrupt operation command is transmitted through the communication cable 61 to the main operation control of the combustion control unit 30. Added to Part 50.

On the side of the main operation controller 50, the command discriminating unit 72 first discriminates whether the command of the command is information reading, rewriting, or cancellation of rewriting information, and then the target of the command command. Control memory
The 45th address is specified by the address specification information included in the interrupt operation command. The signal processing unit 73 performs signal processing such as reading, rewriting, and cancellation of rewriting information of information at a designated address of the control memory 45 in accordance with the interrupt operation command decoded by the command determining unit 72, and inspecting the combustion equipment 27 and controlling conditions. Proceed with settings and other operations. When setting the control conditions, the rewrite command is used as a command, the address for writing the control condition data is specified, and an interrupt operation command is created on the command creation unit 71 side. It may be transmitted to the control unit 50 side. On the main operation control unit 50 side, the interrupt operation command is decoded and the setting information of the control condition is written in the designated address of the control memory 45, and the combustion operation is controlled according to the written control condition. Will be seen.

By the way, as another operation method of the apparatus of this embodiment, it is also possible to carry out operations such as numerical setting of control conditions and inspection without using an inspection program.
That is, by issuing an interrupt operation command from the interrupt command output unit 31, the operation corresponding to the command of the interrupt operation command is performed on the combustion control unit 30 side, for example, the hot water supply of the water heater of FIG. If you want to monitor the temperature detected by the temperature sensor 15, you can use an interrupt operation command that specifies the address of the control memory 45 where the temperature information is stored by using the signal read from the hot water temperature sensor in the control memory 45 as a command. By adding to the combustion control unit 30 side, the combustion control unit 30 side operates according to this command, and the temperature detected by the hot water temperature sensor 15 is displayed on the notification unit 40. Can monitor the sensor.

As described above, when the operation command of each constituent element of the combustion device is to be issued on a one-off basis, the external input means for the interrupt command shown in FIG. 1 (for example, a keyboard, a card, a bar code, a personal computer, etc.) is used. By inputting an encoded command using the input means) 63, this command is translated and converted into an interrupt operation command in which the command and the address designation information are combined in the command creation unit 71 and added to the combustion control unit 30 side. Therefore, the operation according to the command can be performed.

As described above, in this embodiment, the reading of information from the control memory 45 on the combustion equipment 27 side from the inspection device side,
Since an interrupt operation command is sent using three commands of information rewriting and a rewriting information cancel command, the control conditions are set and the inspection is performed.
Even if the model or model of the combustion equipment is different, it is not necessary to create a program such as a dedicated inspection that is different for each model or model. By preparing one of the inspection programs described above, it is possible to use the program to perform the same operation such as inspection without any trouble even in combustion equipment of different models and models.

On the combustion equipment 27 side, the decoding program for decoding the command sent from the inspection device 28 side distinguishes and decodes three commands of information reading, information rewriting, and rewriting information cancellation. Since only the program is required, the memory capacity of the memory ROM of the command discriminating unit 72 that stores the decoding program can be extremely small, so that the device cost can be significantly reduced.

Further, even if the inspection item is changed or added due to the development of a new product of the combustion equipment 27, the combustion equipment 27 side has only to perform the decoding for distinguishing the above three commands, so that a new command is issued. There is no need to change or add a decoding program, so there is no problem of increasing the capacity of the memory ROM that stores the decoding program, no change is required on the combustion device 27 side, and a list is maintained on the inspection device 28 side. Department
Since it is only necessary to change the list stored in 70 (the list of what address is written in the control memory 45), it is easy to respond to the addition or change of new inspection items. be able to.

When a new sensor or an actuator is provided on the side of the combustion device 27, information about the operation of the sensor or the actuator is added to a vacant portion of the control memory 45 at a predetermined address. Even if a new control target element 56 is added to the combustion device 27 side, it is only necessary to write it, and when performing the inspection, as described above, writing information in the control memory 45 and holding the list on the inspection device 28 side. This can be dealt with only by adding the list of the new controlled object elements 56 to the list of the section 70, which is extremely convenient.

Further, since the present embodiment has the above-mentioned structure,
It is possible to obtain an effect that a very difficult inspection can be easily performed by the manual method. For example, the combustion equipment is provided with a freeze prevention heater, a freeze prevention temperature sensor, and a heater drive circuit for turning on the freeze prevention heater when the temperature sensor detects a heater drive start temperature (for example, 0 ° C.). In the case where the heater drive circuit of the combustion equipment is inspected in the summer, in order to manually inspect whether the heater drive circuit operates normally, use dry ice etc. for the installation area of the freeze prevention temperature sensor. It must be cooled down to a heater driving start temperature of, for example, 0 ° C. or lower, which is very difficult. In contrast,
In this embodiment, the interrupt mode is set, the rewrite command is issued by specifying the address of the control memory 45 in which the detection temperature of the freeze prevention temperature sensor is written, and the temperature is set to a dummy temperature below the heater drive start temperature. All you have to do is By setting this dummy temperature, the heater drive circuit determines that the freezing prevention temperature sensor has detected the heater drive start temperature and starts heater drive, and this heater drive changes the power consumption of the combustion equipment. It is possible to easily detect the normal state of the heater drive circuit by detecting as.

The present invention is not limited to the above-mentioned embodiment, and various embodiments can be adopted. For example, in the above embodiment, the operation of the main operation control unit on the combustion control unit 30 side is switched from the operation mode to the interrupt mode when the mode changeover switch 35 is turned on, but the mode changeover switch 35 is turned on. In addition, the operation mode may be switched to the interrupt mode when the leading signal of the interrupt operation command is added or when the mode switching is commanded by the electric signal.

Further, in the above embodiment, when rewriting the data (information) in the control memory 45, the rewriting data is written in the vacant portion of the control memory 45 with an address,
This may be similarly written with an address in the setting data memory 54, and the setting data memory 54 may be used as a memory for rewriting data (information). In order to prevent the rewriting data from being erased due to a power failure or the like, the control memory 45 and the setting data memory 54 are preferably non-volatile memories such as EEPROM.

Further, as shown by a broken line in FIG. 1, the interrupt control unit 60 side and the combustion control unit 30 side are connected with the remote controller 57 as an intermediary, and the remote controller 57 is provided with the function of the communication cable 61. The operation mode and the interrupt mode may be switched via the communication, or communication between the control units 30 and 60 may be performed to perform operations such as setting of control conditions and inspection.

Further, in the above embodiment, the inspection device 28
Is configured so that it can be transported freely, and when inspecting the combustion equipment installed in each home, the sensor 47 on the combustion equipment 27 side
If you do not want to correct the
3, components such as the external response detector 39, the data corrector 37, and the external command driver 38 can be omitted.

Further, in the above embodiment, the combustion equipment shown in FIG. 3 was described as a model, but the combustion equipment subject to numerical setting and inspection of the apparatus of the present invention is not necessarily limited to the model shown in FIG. However, the present invention is applied to various other combustion devices such as a combustion type heater, a cooler, and an air conditioner.

[0060]

According to the present invention, commands for setting numerical values and inspecting combustion equipment are given in three types of information reading, information rewriting, and rewriting information cancellation. A list of what information is stored in each address of the control memory is provided, and the inspection device side refers to this list to issue an interrupt operation command for setting the control condition and inspecting the above three types. Created by combining the command and the specified information of the address of the control memory that performs signal processing according to the command of that command, and send this interrupt operation command to the combustion device side to set the control condition of the combustion device and inspect it. Therefore, the decoding program for decoding the interrupt operation command on the combustion equipment side may be configured to only distinguish and decode the above-mentioned three types of commands. For decryption program may be of very simple, ROM for storing the decoding program
The capacity of the memory such as is also very small. As a result, the device cost can be reduced due to the drastic downsizing of the memory for storing the decoding program.

Further, even if the inspection items of the combustion equipment are changed or added as the development of the combustion equipment progresses, the interrupt operation command for setting the control conditions and inspecting the combustion equipment is generated by the above three types of commands. Since it is performed, the program that decodes the command on the combustion equipment side does not need to be changed at all, the combustion equipment side can deal with it without any modification, and the list held in the list holding unit on the inspection device side Since it is only necessary to change the contents of the above, it is possible to easily cope with the development of new products of the combustion equipment, etc., and it is possible to obtain an excellent effect that has never been achieved.

Further, even if the type and model of the combustion equipment are different, by giving the same command, it is possible to give the same operation command of the constituent elements according to the command. Therefore, even if the model or model of the combustion equipment is different, it is not necessary to individually create a dedicated program for inspection etc. for each of these models, but by giving a common inspection program or a single interrupt operation command, Numerical setting of control conditions of the combustion equipment to be inspected and operation commands such as inspection can be performed without any trouble.

Further, when setting or inspecting the control conditions of the combustion equipment, it is only necessary to give a command to the required operation.
Compared to the case where the operation program is continuously run from the beginning without any missing portion as in the inspection of the conventional example, the time can be significantly shortened. Further, since the inspection can be performed by inputting the dummy information by the command command, it is possible to achieve an epoch-making effect that it is possible to easily perform the inspection which is difficult depending on human hands.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a combustion device and an inspection apparatus for the same according to the present invention.

FIG. 2 is an explanatory diagram of a communication unit that connects the interrupt control unit side of the inspection device and the combustion control unit of the combustion device in the embodiment.

FIG. 3 is an explanatory diagram showing an example of models of various combustion devices which are targets of numerical setting of control conditions and inspection.

FIG. 4 is an explanatory diagram of a combustion device and an inspection device that the applicant previously proposed and prototyped.

[Explanation of symbols]

27 Combustion equipment 28 Inspection device 30 Combustion control unit 31 Interrupt command output section 45 control memory 50 Main operation controller 70 List holder 71 Command creation section 72 Command discrimination section 73 Signal processor

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) F23N 5/26 101 F24H 1/10 301 G05B 23/02 302

Claims (4)

(57) [Claims] 1. An apparatus for inspecting a combustion device, which is connected to the combustion device via a communication means and transmits an interrupt operation command of the combustion device from the outside to the combustion device via the communication means,
A list holding unit that holds a list of addresses of a control memory that stores operation information that operates according to the operation program of the combustion device and a list of relational data of information stored at each address, and the holding of this list holding unit A command creating section for creating an interrupt operation command to the combustion equipment by referring to the related data, and a command sending section for sending the interrupt operation command created by the command creation section to the combustion equipment via the communication means. The instruction creating unit is configured to create each interrupt operation instruction by a combination of the address designation information of the control memory and a command of reading, rewriting, or canceling the rewriting information of the designated address information. Inspection equipment for combustion equipment. 2. The inspecting apparatus for a combustion device according to claim 1, wherein the interrupt operation command is formed by arranging a command at the head and then address designation information in series after the command. 3. A combustion device connected to the inspection device according to claim 1 or 2 through a communication means, and a command determination portion for determining a command of an interrupt operation command applied from the inspection device, and a determination device. And a signal processing unit that performs signal processing of a specified address of the control memory according to the command of the command. 4. A method for inspecting a combustion device, wherein an interrupt operation command for the combustion device is transmitted from the outside to the combustion device via a communication means, and the combustion device is operated by this interrupt operation command for inspection. Preliminarily holds a list of relational data of the addresses stored in the control memory and the information stored in each address that stores the operation information that operates according to the operation program of the equipment, and refer to the relational data held by this list holding unit Then, each interrupt operation command is created by a combination of the address specification information of the control memory and any command of reading, rewriting, and cancellation of the rewriting information of the specified address information, and the created interrupt operation command is communicated by the communication means. To the combustion equipment via the command line, signal processing of the specified address of the control memory is performed according to the command of the command, and the signal processed control is performed. A method for inspecting a combustion device by operating the combustion device according to the data in the control memory to inspect the combustion device.