JPS5922156A - Composite function device - Google Patents

Abstract

PURPOSE:To select an optional function easily by providing plural functions and cutting their conductive lines selectively. CONSTITUTION:A function specifying input part 11 consists of resistances R1, R2, and R3 each connected to an electric power source VCC at one terminal. A function specifying signal generation part 12 consists of conductive lines 121-124 formed of copper foil, etc., on a printed circuit board, and one-side terminals of the lines 121-124 are connected to terminals A, B and C of the resistances R1-R3 of the input part other than power source terminals. When a power source switch SW4 is turned on, a measuring device 1 starts measuring and calculating an expected running distance, etc., from a running time, a running distance, and the remaining fuel. The constant used for the calculation depends upon the tire diameter of a car and a display unit. The measuring device 11 sets the constant optionally according to which of the conductive lines 121-123 are cut, and performs the arithmetic on the basis of the constant.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a novel multi-functional device, and in particular, it is provided with a plurality of functions, from which any function can be selected by a simple process of cutting a conductive line. The aim is to provide a new multifunctional device.

BACKGROUND TECHNOLOGY When driving a car (automobile, motorcycle, etc.), not only the speed but also the driving time, driving distance, and even the so-called remaining driving distance, that is, the distance that can be driven with the remaining fuel, etc. are always checked. It is preferable to know these things, and especially in rallies, it is essential to know them accurately.

Therefore, cars, motorcycles, etc. are required not only in Japan but also in other countries to be equipped with measuring devices that calculate not only speed but also travel time, travel distance, remaining travel distance, etc., and display the calculation results. , some products have appeared that meet this demand. These electronic measuring devices have a built-in microcomputer, and the data from the internal timer, wheel rotation speed sensor, fuel amount sensor, etc. is processed by the microcomputer to calculate running time, running distance, remaining fuel, and remaining running. Distances, etc. are determined and displayed on a display.

By the way, the diameter of the wheels of automobiles, autopilots, etc. differs depending on the type of vehicle. And if the diameter of the wheels is different, jaT,
Since the distance traveled per wheel rotation is different, the constants in the calculation formulas such as travel distance and travelable distance are also different. Also, some countries use kilometers as a unit of distance, others miles, some countries use liters as a unit of volume, some countries use calons, and so on. The units are different. Even when the units are different, the constants of the calculation formula for calculating the remaining fuel, travel distance, remaining travelable distance, etc. are different. In that case, the measuring device is designed separately for each vehicle and for each destination.
Producing one would lead to a significant increase in the price of the measuring device. Therefore, in order to apply one measuring device to automobiles and motorcycles with various wheel diameters and to each destination, in other words, it is manufactured to have multiple functions, and the function can be controlled by a function designation signal applied to the measuring device from the outside. The inventor of the present invention has developed a system that can be applied to wheel diameters and destinations of a.

By the way, if the function designation signal is input to the measuring device using a function switch, for example, the switch will occupy a relatively large space. In addition, although the function designation signal does not need to be changed once the vehicle where the measuring device is installed or the destination has been determined, the function can be designated to the electronic meter 11111 device by a switch with low durability and impact resistance. Inputting a signal is undesirable because it reduces the reliability of the device.

OBJECTS OF THE INVENTION Accordingly, the present invention seeks to provide a novel multi-function device that is equipped with a plurality of functions, and any one of them can be selected by a simple process of cutting a conductive line.

Summary of the Invention In order to achieve the above object, the present invention has a plurality of types of functions, and upon receiving a function designation signal, performs the function specified by the function designation signal from among the plurality of functions. A multi-function device having an internal circuit, in which a plurality of conductive lines are formed to protrude to the outside of the device and give signals of different contents to the internal circuit depending on whether or not they are cut, and the conductive lines provide multiple focal points. According to the present invention, an arbitrary function can be selected from a plurality of functions simply by cutting an arbitrary conductive line. You can choose things.

Embodiments Below, the multifunction device of the present invention will be explained according to embodiments shown in the accompanying drawings.

Fig. 1 shows an example in which the present invention is applied to an electronic measuring device for measuring and displaying running time, running distance, etc. of an Oi-Pie, etc. In the figure, 1 carries out measurement calculations according to a predetermined program. A microcomputer installed on a printed wiring board (not shown). 2 is a central processing unit (hereinafter referred to as rcPU) that executes each process necessary for measurement calculation and display of measurement calculation results according to a predetermined program; 5 is an input circuit that receives data from sensors 6a and 6b and switch swi; It takes in signals from SW2 and SW3 and sends them to the CPU2 and RAM4 as appropriate. Sensor 6a
6b is a wheel rotation sensor that detects the rotation of the wheel, and 6b is a remaining fuel amount sensor that detects the amount of fuel remaining in the fuel tank. Reference numeral 7 denotes an output circuit that stores data to be displayed on the display device 8 and outputs the data to the display device 8. 9 is the above CPU2, ROM3, RAM
4, an address bus that connects the input circuit 5 and the output circuit 7, and 10, which is a data bus.

11 is a function designation signal input section, which is a resistor R whose one terminal is connected to the power supply (+V c c) terminal as shown in Fig. 2.
1, R2 and R3. Reference numeral 12 denotes a function designation signal generation section, which is composed of conductive lines 121 to 124 made of copper foil or the like formed on a printed circuit board, one end of which is a function designation signal input section. It is connected to the terminals A, B, and C on the side opposite to the power supply terminal of the resistors R1, R2, and R3 of No. 11, and is further connected to the CPU 2. Further, the terminal connected to the conductive line 121, 122, 123 and the terminal on the opposite side are mutually grounded via the conductive line 124.

In addition, SW1 is a scooter/strike switch, SW2 is a mode switch, SW3 is a reset switch, and SW4 is a power switch. When the power switch SW4 is turned on, the power supply voltage Vcc is applied to the microcomputer 1, thereby bringing the microcomputer 1 into a predetermined initial state. microcomputer l
After reaching the initial state, press the start/stop switch SW.
When I is pressed, various measurement calculations are started.

Then, the display device 8 displays a predetermined type of measurement result. To change the type of measurement calculation results to be displayed, press the mode switch SW2. That is, each time the mode switch SW2 is pressed, the types of measurement calculation results displayed on the display device 8 change in a fixed order. If the start/stop switch SWI is pressed while measurement calculations are being performed, the measurement calculations are stopped and the various measurement calculation results remain unchanged. In this state, that is, when the measurement calculation is stopped, pressing the start/stop switch SWI restarts the measurement calculation. Further, when the reset switch SW3 is pressed, the contents of each measurement calculation result are reset to "0". However, in the case of a mode in which the result detected by the sensor 6b, such as the remaining amount of fuel, is displayed as is, the detection result is displayed as is, instead of "0".

The electronic measuring device shown in Fig. 1 measures and calculates travel time, travel distance, distance that can be traveled with remaining fuel, etc. The constants used in the calculation formula are the diameter of the motorcycle tire,
Since it differs depending on the display unit of the measurement results, the constant can be changed according to the diameter of the tire and the display unit depending on whether each of the conductive patterns 121 to 123 is cut or not. A more specific explanation of this point is as follows.

It is assumed that the constant K used in the calculation formula for calculating the travel distance, the distance that can be traveled with remaining fuel, etc. changes as shown in Table (1) below depending on the tire diameter d and the display unit.

Table (1) Next, a program for setting the constant K will be explained according to FIG.

(a) It is determined whether the level of A, that is, the terminal on the side opposite to the power supply terminal of the resistor R1 is "low".

If the conductive line 12. A if not disconnected
Since the level of is "low", a yes judgment result is obtained and the process proceeds to step (b). In addition, the conductive line 121
If A is disconnected, the level of A becomes "high", so a "NO" judgment result is obtained and the process proceeds to step (S).

(b) It is determined whether the level of rB, that is, the terminal on the side opposite to the power supply terminal of the resistor R2 is "r low".

If the conductive line 122 is not cut, the level B)Ly becomes "low", so a YES judgment result is obtained and the process proceeds to step (c), and if the conductive line 122 is cut, Since the level of B is "r high", a judgment result of "NO" is obtained and the process proceeds to step (d).

(c) It is determined whether the level of C1, that is, the terminal on the side opposite to the power supply terminal of resistor R3 is "low".

If the conductive line 123 is not cut, the level of C becomes "low", so a judgment result of YES is obtained and the process proceeds to step (e), and if the conductive line 123 is cut, the level of C becomes "low". Since the level of is [high j, a judgment result of "no" is obtained and the process proceeds to step (to).

(d) It is determined whether "the level of C is r low" or j.

If the judgment result is YES, proceed to step (g), and if the judgment result is no, proceed to step (ch).

(e) Execute the process of "setting 1 as a constant".

(to) Execute the process of "setting 2 as a constant".

(Execute the J process that sets the fir constant to 3.

(H) Execute the process of [setting 4 as a constant].

(1) Make a judgment as to whether there are 10 levels of B.

Then, if the judgment result is YES, proceed to step (N), and if the judgment result is NO, proceed to step (RU).

(J) "The level of C is determined to be ``Low J.''

Then, if the judgment result is YES, proceed to step (wo), and if the judgment result is no, proceed to step (wa).

(l) Make a judgment as to whether the level of C is "low". Then, if the judgment result is YES, proceed to step (power), and if the judgment result is no, proceed to step (yo).

(w) Execute the process of "setting 5 as a constant".

(W) Execute the process of [setting 6 as a constant].

(Power) “Execute the J process that sets 7 as a constant.

(Y) Execute the "set 8 as a constant" process.

In this way, this electronic measuring device executes a program that sets the constant K to one of 1 to 8 before executing arithmetic processing, and the content of the selection is determined by the function designation signal generation section. It can be arbitrarily selected depending on whether or not to cut each of the 12 conductive lines 121 to 123. Table (2) below shows each conductive line 121 to 123.
This is a comparison table of each state of canted or not and its corresponding constant.

Table (2) According to such an electronic measuring device, the constant K can be arbitrarily set by simply cutting or not cutting each of the conductive lines 121, 122, and 123, and the constant K can be adjusted to that constant. Based on this, calculations can be performed to determine the running pressure, the distance that can be traveled with the remaining fuel, etc. Note that the entire measurement calculation program executed by the electronic measuring device is not directly related to the wood quality of the present invention, so a description thereof will be omitted.

As mentioned above, the constant K of the calculation equation can be arbitrarily set by cutting the conductive line, and the calculation can be solved based on that constant. This means that this electronic measuring device can solve many calculation equations with different constants. (In the above embodiment, 8) types of functions are provided, and by not cutting each of the plurality of conductive lines, one function is arbitrarily selected from among the plurality of functions and the function is exerted. It means that you can. If an electronic measuring device is manufactured to have multiple functions in this way, the diameter of the wheel,
There is no need to separately design and manufacture different electronic measuring devices depending on the destination, and by simply cutting the conductive line, the electronic measuring device can be made to match the diameter of the wheel and the destination.

Note that the display unit for the remaining amount of fuel may be kilotons or liters depending on the destination, so electronic measuring devices that can display the remaining amount of fuel may display it in gallons or liters. It can be said that it is necessary to make it possible to select whether to display the information. However, in countries where the unit of distance is miles, the unit of volume is gallons, and in countries where the unit of distance is kilometers, the unit is volume!・Since the conductive line used to set the unit of distance (121 corresponds to the above example) can be used as is to set the unit of volume, It is not necessary to provide special conductive lines.

In the embodiment described above, the constant of the arithmetic expression is changed by canting each conductive line, but it is also possible to change the type of program to be executed instead of the constant of the arithmetic expression. That is, each conductive line 1
21, 122, and 123, so that different programs stored in different areas of the ROM 3 are executed depending on whether or not the conductive lines are canted. A multi-function device can be obtained in which the type of program to be executed can be selected by cutting.

As described in Section 2 below, the multifunction device of the present invention has multiple types of functions, and upon receiving a function designation signal, performs the function specified by the function designation signal from among the multiple types of functions. A multi-function device having an internal circuit configured to be canted, wherein a plurality of conductive lines are formed to protrude outside the device and give signals of different contents to the internal circuit depending on whether or not the conductive line is canted. This feature is characterized in that the function to be performed can be selected by the number-of-sheets bit signal. Therefore, according to the present invention, it is possible to provide a multi-function device which is provided with a plurality of functions and can select any function from among them by applying force or tightening of a conductive line. Therefore, there is no need to separately design and manufacture different devices for each function, and the cost of the device can be reduced.

[Brief explanation of the drawing]

The drawings are for explaining an example of the implementation of the multi-function device of the present invention, and FIG. 1 is a circuit block diagram of the device, and FIG. 2 is a circuit diagram showing conductive lines and parts directly related thereto.
FIG. 3 is a flowchart 1 showing a part of the execution program of the apparatus. Explanation of symbols 1...Internal circuit, 121.122.123...
Conductive line applicant Koito Manufacturing Co., Ltd.

Claims (1)

[Claims] (1) A multi-function device that has multiple types of functions and has an internal circuit that receives a function designation signal and performs the function specified by the function designation signal from among the multiple types of functions. A plurality of conductive lines are formed to protrude to the outside of the device and give signals of different contents to the internal circuit depending on whether or not they are cut, and the function designation signal is constituted by a plurality of bits of signals from the conductive lines. A multi-function device characterized by: