CN111239675B - Multi-meter parallel traversal test method and system for multi-core module electric energy meter minute freezing - Google Patents

Abstract

The application discloses a multi-meter parallel traversal testing method and a multi-meter parallel traversal testing system for minute freezing of an electric energy meter with a multi-core module, wherein the method comprises the following steps: the upper computer sends a time setting instruction of the intelligent electric meter to the single chip microcomputer; the single chip microcomputer sends a time setting instruction to the corresponding intelligent electric meter according to the setting time and the meter address; judging whether the single chip microcomputer receives a reply frame with correct setting; if yes, delaying to wait for the electric energy meter to store for a plurality of minutes; judging whether the time setting times reach a preset value or not; if not, updating the set time, and sending a time setting instruction to the intelligent ammeter again according to the updated set time until the time setting times reach a preset value; if so, the test is finished, and a test finished data frame is sent to the upper computer. According to the method, the single chip microcomputer is used for setting the time of the electric energy meter to replace the original PC communication setting method of the upper computer, the response speed of the single chip microcomputer is greatly improved compared with PC software, a large amount of test time is saved, and the test efficiency is effectively improved.

Description

Multi-meter parallel traversal test method and system for minute freezing of multi-core module electric energy meters

technical field

The present application relates to the technical field of smart electric energy meters, and in particular, to a multi-meter parallel traversal test method and system for freezing minute freezing of multi-core module electric energy meters.

Background technique

With the development of national economy and technology and the improvement of people's living standards, electric energy has become an indispensable secondary energy in people's production and life, bringing endless convenience to people's production and life. As the only part of measuring electric energy in the power system, the importance and reliability of the electric energy meter are self-evident.

The minute freeze is the record of the real-time power load operation status and characteristics of the smart meter during the operation of the power system. The smart meter records the minute freeze record periodically according to the time interval set by the user. The data objects of the minute freeze record are set by the user. The interval period of object recording and the maximum depth of recording can be set by the user. When the electric meter is produced, the function of the electric meter needs to be tested to ensure that its function meets the requirements of the newly released multi-core module electric energy meter specification.

During the test, to meet the requirements of the above data storage function, the test time of this function of the electric energy meter is too long, so the test of this requirement can be completed by modifying the time of the electric energy meter. Most of the existing test methods are that the host computer directly interacts with the data of the electric energy meter through the test software, including the setting of the relevant time data and the copying of the frozen data. However, the processing speed of the upper computer test software is relatively slow, resulting in a long test time and affecting the test efficiency.

SUMMARY OF THE INVENTION

The present application provides a multi-meter parallel traversal test method and system for minute freezing of a multi-core module electric energy meter, so as to solve the problem that the current multi-core module electric energy meter has a long test time for minute freezing.

In order to solve the above technical problems, the embodiments of the present application disclose the following technical solutions:

In a first aspect, an embodiment of the present application discloses a multi-meter parallel traversal test method for freezing a multi-core module electric energy meter in minutes, the method comprising:

The host computer sends the smart meter time setting instruction to the single-chip microcomputer;

The single-chip microcomputer sends a time setting instruction to the corresponding smart meter according to the setting time and the table address;

Judging whether the single-chip microcomputer receives a correctly set reply frame;

If the single-chip microcomputer receives a correctly set reply frame, it delays and waits for the electric energy meter to store across minutes;

Determine whether the number of time settings reaches the preset value;

If the number of time settings does not reach the preset value, update the set time, and send a time setting instruction to the smart meter again according to the updated set time, until the number of time settings reaches the preset value;

If the number of time settings reaches the preset value, the test is completed, and a test completion data frame is sent to the upper computer.

Optionally, the single-chip microcomputer sends a time setting instruction to the corresponding smart meter according to the set time and the table address, including:

The host computer sends a table number reading command;

The single-chip microcomputer forwards the table number reading command to the corresponding serial port;

Determine whether the single-chip microcomputer has received a correct reply frame;

If the single-chip microcomputer receives the correct reply frame, save the table address corresponding to the table number in the table address buffer area of the single-chip microcomputer;

The single-chip microcomputer sends a time setting instruction to the corresponding smart meter according to the time stamp of the data frame sent by the upper computer and the buffered table address.

Optionally, the single-chip microcomputer sends a time setting instruction to the corresponding smart meter according to the set time and the table address, including:

The host computer sends a table number setting command to the single-chip microcomputer;

The single-chip microcomputer solidifies the table address of the smart meter according to the table address of the table address buffer area;

Determine whether the single-chip microcomputer has received a correct reply frame;

If the single-chip microcomputer receives the correct reply frame, the single-chip computer sends a time setting instruction to the smart meter according to the time stamp of the data frame sent by the upper computer and the solidified table address.

Optionally, delay waiting for the energy meter to store across minutes, including:

The delay time is the difference between the seconds of one minute and the seconds of the set time.

Optionally, updating the set time includes:

The microcontroller directly adds 1 to the preset time minutes to update the set time.

In the second aspect, the embodiment of the present application also discloses a multi-meter parallel traversal test method for freezing a multi-core module electric energy meter in minutes, the method comprising:

The host computer sends the smart meter time setting instruction to the single-chip microcomputer;

The single-chip microcomputer sends a time setting instruction to the corresponding smart meter according to the setting time and the first meter address;

Judging whether the single-chip microcomputer receives a correctly set reply frame;

If the single-chip microcomputer receives a correctly set reply frame, the electric energy meter starts to delay storage across minutes;

The single-chip microcomputer sends time setting instructions to the corresponding smart meter in turn according to the setting time and the address of the remaining meter;

Determine whether the single-chip microcomputer receives the correct setting reply frames in sequence;

If the single-chip microcomputer receives the correct response frames in turn, it is judged whether the delay time is reached;

If the delay time is reached, stop the data delay across minutes;

Determine whether the number of time settings reaches the preset value;

If the number of time settings does not reach the preset value, update the set time, and send a time setting instruction to the smart meter again according to the updated set time, until the number of time settings reaches the preset value;

If the number of time settings reaches a preset value, the test is completed, and a test completion data frame is sent to the upper computer.

In a third aspect, an embodiment of the present application also discloses a multi-meter parallel traversal test system for freezing a multi-core module electric energy meter in minutes, including:

The upper computer is connected to the single chip for communication, and is used for sending the time setting instruction of the smart meter to the single chip computer;

The single-chip microcomputer is provided with a plurality of communication serial ports, and the communication serial ports are connected to the smart meter for communication, and are used to forward the time setting instruction to the corresponding smart meter according to the set time and the meter address, and when the time setting instruction is set correctly, wait for a delay The energy meter is stored across minutes until the number of time settings reaches the preset value.

Optionally, each of the communication serial ports is connected to the smart meter in one-to-one correspondence.

Optionally, each of the communication serial ports is connected to a plurality of the smart meters.

Compared with the prior art, the beneficial effects of the present application are:

The multi-meter parallel traversal test method for freezing the multi-core module electric energy meter in minutes provided by the application realizes the interaction of the electric energy meter data through the single chip microcomputer, and replaces the original upper computer communication setting method by using the lower computer to set the time of the electric energy meter. In the one-year time cycle traversal, a lot of test time can be saved, and the processing speed of the single-chip microcomputer is greatly improved compared with the PC software, which can greatly reduce the time required for testing and effectively improve the testing efficiency.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not limiting of the present application.

Description of drawings

In order to illustrate the technical solutions of the present application more clearly, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, without creative work, the Additional drawings can be obtained from these drawings.

FIG. 1 is an exemplary schematic block diagram of a multi-meter parallel traversal test model for freezing in minutes of a multi-core module electric energy meter;

2 is a flowchart of a multi-meter parallel traversal test method for freezing in minutes of a multi-core module electric energy meter provided by an embodiment of the present application;

3 is a detailed flowchart of S102 in the multi-meter parallel traversal test method for freezing a multi-core module electric energy meter in minutes provided by an embodiment of the present application;

4 is another detailed flowchart of S102 in the multi-meter parallel traversal test method for minute freezing of a multi-core module electric energy meter provided by an embodiment of the present application;

FIG. 5 is a schematic block diagram of another exemplary multi-meter parallel traversal test model for freezing in minutes of a multi-core module electric energy meter;

FIG. 6 is a flowchart of another multi-meter parallel traversal test method for minute freezing of a multi-core module electric energy meter according to an embodiment of the present application.

Detailed ways

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described The embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

According to the released single-phase multi-core modular functional specification Q/GDW 1354-201X "Smart Electric Energy Meter Functional Specification":

4.1.5 Freeze

a) Freeze data such as electric energy, instantaneous quantity, self-monitoring error, etc. according to the agreed interval period. The total positive and negative active energy, voltage, current, frequency, one-minute average active power, one-minute average reactive power, and power factor should be kept for at least 1 year at 1min intervals. The total energy of the forward and reverse fundamental waves, the total energy of the forward and reverse harmonics, and the four-quadrant reactive energy should be stored for at least 1 year at intervals of 15 minutes.

b) The frozen content and identifier shall comply with DL/T698.45-2017, and no changes are allowed in the factory, providing effective support for data traceability. The frozen object is recommended to be implemented according to the "Table A.2 Electric Energy Meter Measurement Module Function Configuration Recommendation Table".

c) The minute freeze time is missed at the power outage time, and the data should be frozen in the next minute of the power outage time when the power is turned on.

d) If the time is set in the future direction and the minute freezing time is missed, the next freezing time before the time modification should be made up. The time is set back to the historical direction, which should overwrite the frozen data of the original minute.

e) Considering that minute freezing is used as legal data for traceability, the reliability of data storage should be ensured. It is recommended that CRC (Cyclic Redundancy Check, Cyclic Redundancy Check) check and store each minute freezing record.

When the meter is produced, the function of the meter needs to be tested to ensure that its function meets the specification requirements. During the test, to meet the requirements of the above data storage function, the test time of this function of the electric energy meter is too long. Therefore, the test of this function requirement can be completed by modifying the time of the electric energy meter.

Most of the existing test methods are that the host computer directly interacts with the data of the electric energy meter through the test software, including the setting of the relevant time data and the copying of the frozen data. Taking the relevant data that is required to be saved once every 1 minute as an example, the number of time nodes involved is 525,600 minutes (1 year = 60*24*365 minutes = 525,600 minutes), and the time of the meter needs to be modified 525,600 times. Calculated for 300ms, the time required to complete the functional test is 525600*300(ms)=157680(s)=43.8(h).

Since it takes a long time to test the freezing function of the electric energy meter through the upper computer at present, the present application proposes a parallel traversal test method for the requirement that the above-mentioned minute freezing test time is too long. The original host computer communication setting method can save a lot of test time in the one-year time cycle traversal.

This application provides a multi-meter parallel traversal test method for freezing multi-core module electric energy meters in minutes through a single-chip microcomputer for data freezing testing. Now the mainstream single-chip microcomputers have multiple communication serial ports to meet user needs. Take the STM32F10x series of single-chip microcomputers as an example. Different models of single-chip microcomputer have 2-5 uart communication serial ports. The number of electric energy meters connected to each communication serial port can be one or more. During testing, multiple communication serial ports are connected in parallel, and the communication time of the connected electric energy meter is modified at the same time. , perform minute data storage test on multi-core module electric energy meter.

Example 1

As shown in Figure 1, a smart energy meter is connected to each communication serial port of the microcontroller, and the smart energy meter corresponds to the communication serial port of the microcontroller one by one. The upper computer issues operation instructions to the single-chip microcomputer, and the single-chip microcomputer executes the corresponding instructions after receiving the instructions. The operation instructions include: enter the field mode instruction, set the table number instruction, factory mode instruction, set time instruction, freeze data copy instruction, etc.

As shown in FIG. 2, a multi-meter parallel traversal test method for minute freezing of a multi-core module electric energy meter provided by an embodiment of the present application includes:

S101: The host computer sends a time setting instruction of the smart meter to the microcontroller.

S102: The single-chip microcomputer sends a time setting instruction to the corresponding smart meter according to the setting time and the table address.

After the energy meter and the device are powered on, the host computer sends the smart meter time setting instruction to the single-chip microcomputer, and sends the test data frame; then the single-chip microcomputer forwards the time setting instruction to the corresponding smart meter according to the set time and the table address, wherein the initial setting time is the preset time. Set the time, and the meter address can be obtained in two ways, one is by meter reading, and the other is by setting. The specific method of obtaining the meter address by meter reading is shown in Figure 3:

S1021: The upper computer sends a meter number copying command.

S1022: The single-chip microcomputer forwards the meter number reading command to the corresponding serial port.

S1023: Determine whether the microcontroller has received a correct reply frame.

S1024: If the single-chip microcomputer receives the correct reply frame, it saves the table address corresponding to the table number to the table address buffer area of the single-chip microcomputer.

S1025: The single-chip microcomputer sends a time setting instruction to the corresponding smart meter according to the time stamp of the data frame sent by the host computer and the buffered table address framing.

When the meter address is obtained by meter reading, the upper computer sends a meter number reading command, and the single-chip microcomputer forwards the meter number reading command to the corresponding smart meter. Reply to set the correct reply frame, then the host computer sends a start test command, the single-chip microcomputer frames according to the time stamp of the data frame sent by the host computer and the cached table address, and starts to send time setting instructions to the corresponding smart meter.

The specific method of obtaining the table address by setting is shown in Figure 4:

S1121: The host computer sends a table number setting command to the microcontroller.

S1122: The single-chip microcomputer solidifies the table address of the smart meter according to the table address in the table address buffer area.

S1123: Determine whether the microcontroller has received the correct reply frame.

S1124: If the single-chip microcomputer receives the correct reply frame, the single-chip computer sends a time setting instruction to the smart meter according to the time stamp of the data frame sent by the host computer and the solidified table address.

When the meter address is obtained through the setting method, the host computer sends the meter number setting command, and the single-chip microcomputer directly solidifies the meter number address of the electric energy meter under each communication serial port after receiving the meter number setting command, and then communicates through these fixed meter addresses, and sends the upper The computer replies to set the correct reply frame, and then the host computer sends the start test command. The single-chip microcomputer forms the frame according to the time stamp of the data frame sent by the host computer and the solidified table address, and starts to send the time setting command to the corresponding smart meter.

S103: Determine whether the single-chip microcomputer receives a correctly set reply frame.

After the single-chip microcomputer sends the time setting instruction to the corresponding smart meter according to the set time and the meter address, if the single-chip microcomputer reads the corresponding meter address, it will reply to the single-chip microcomputer with a correctly set reply frame, and execute step S104; if the single-chip microcomputer does not read the corresponding meter address, send an error reply frame to the upper computer, and return to step S101.

S104: If the single-chip microcomputer receives a correctly set reply frame, it delays and waits for the electric energy meter to store across minutes.

If the single-chip microcomputer receives the correct response frame, it means that the single-chip microcomputer has read the corresponding meter address, and the corresponding smart energy meter delays and waits for the energy meter to store across minutes. In this example, the delay time is related to the second time of the set time, specifically: delay time=60-second time of the set time.

S105: Determine whether the number of times of time setting reaches a preset value.

After delaying waiting for the electric energy meter to store across minutes, it is necessary to determine whether the number of time settings reaches the preset value. For example, taking the relevant data that is required to be saved once every 1 minute as an example, the number of time nodes involved is 525,600 minutes (1 year = 60*24* 365 minutes=525,600 minutes), the time of the electric meter needs to be modified 525,600 times, therefore, the default value of this application can be 525,600. If the number of time setting times does not reach the preset value, step S106 is performed; if the number of time setting times reaches the preset value, step S107 is performed.

S106: If the number of time setting times does not reach the preset value, update the setting time, and send a time setting instruction to the smart meter again according to the updated setting time until the number of time setting times reaches the preset value.

If the number of time settings does not reach the preset value, it means that the test of the electric energy meter has not been completed. It is necessary to continue the test, update the set time, and send the time setting command to the smart meter again according to the updated set time until the number of time settings reaches the preset value. Achieving a short-term implementation test for one year of data storage compliance. When updating the set time, the microcontroller directly adds one minute to the original timestamp to obtain the new set time.

S107: If the number of time settings reaches a preset value, the test is completed, and a test completion data frame is sent to the upper computer.

If the number of time settings reaches the preset value, the test of the electric energy meter is completed, and the test completion data frame is sent to the upper computer to realize the minute freezing test of the electric energy meter.

Embodiment 2

When a single serial port of the microcontroller corresponds to an electric energy meter, after setting the time for the electric energy meter corresponding to the serial port, it takes a period of time for the smart electric meter to transfer data across minutes. In terms of time utilization, this time is idle for the microcontroller, so multiple electric energy meters can be connected under one serial port, and multiple electric energy meters can be cyclically communicated, and the original waiting time can be reasonably used to improve the test efficiency.

As shown in Figure 5, multiple electric energy meters are connected to each communication serial port of the single-chip microcomputer, and one communication serial port of the single-chip microcomputer corresponds to multiple electric energy meters. The upper computer sends operation instructions to the single-chip microcomputer, and the single-chip microcomputer executes the corresponding instructions after receiving the instructions. The operation instructions include: enter the field mode instruction, set the table number instruction, leave the factory mode instruction, set the time instruction, freeze the data copy instruction, etc.

As shown in FIG. 6 , another multi-meter parallel traversal test method for minute freezing of a multi-core module electric energy meter provided by an embodiment of the present application includes:

S201: The host computer sends a time setting instruction of the smart meter to the microcontroller.

S202: The single-chip microcomputer sends a time setting instruction to the corresponding smart meter according to the setting time and the address of the first meter.

Since multiple smart energy meters with different meter addresses are connected to one communication serial port of the microcontroller, after the energy meter and the device are powered on, the host computer sends the smart meter time setting instruction to the microcontroller, and sends the test data frame; The first meter address sends a time setting instruction to the corresponding smart meter, wherein the initial setting time is the preset time, and the meter address can be obtained in two ways, one is by meter reading, and the other is by setting .

When the meter address is obtained by meter reading, the host computer sends a meter number reading command, and the single-chip microcomputer forwards the meter number reading command to the corresponding smart meter. The computer replies to set the correct reply frame, and then the host computer sends a start test command. The single-chip microcomputer performs framing according to the time stamp of the data frame sent by the host computer and the cached first table address, and starts to send the time setting command to the corresponding smart meter.

The meter address is obtained through the setting method, the upper computer sends the meter number setting command, and the single-chip microcomputer directly solidifies the meter number address of the electric energy meter under each communication serial port after receiving the meter number setting command, and then communicates through these fixed meter addresses, and sends the upper computer Reply to set the correct reply frame, then the host computer sends a start test command, the single-chip microcomputer performs framing according to the time stamp of the data frame sent by the host computer and the solidified first table address, and starts to send the time setting command to the corresponding smart meter.

S203: Determine whether the single-chip microcomputer receives a correctly set reply frame.

After the single-chip microcomputer sends the time setting instruction to the corresponding smart meter according to the set time and the first meter address, if the single-chip microcomputer reads the corresponding meter address, it will reply to the single-chip microcomputer with a correctly set reply frame, and execute step S204; the table address, send an error reply frame to the upper computer, and return to step S201.

S204: If the single-chip microcomputer receives the reply frame with the correct setting, it starts the delay storage of the electric energy meter across the number of minutes.

If the single-chip microcomputer receives the correct response frame, it means that the single-chip microcomputer has read the corresponding meter address, and the corresponding smart energy meter delays and waits for the energy meter to store across minutes. In this example, the delay time is related to the second time of the set time, specifically: delay time=60-second time of the set time.

S205: The single-chip microcomputer sequentially sends a time setting instruction to the corresponding smart meter according to the setting time and the address of the remaining meter.

After the smart meter corresponding to the first meter address starts to store the meter with a delay across minutes, the single-chip microcomputer sends time setting instructions to the corresponding smart meter in turn according to the set time and the remaining meter addresses. For example, if three smart energy meters with different meter addresses are connected to one communication serial port of the microcontroller, the microcontroller sends a time setting instruction to the corresponding smart meter according to the set time and the second meter address or the third meter address.

S206: Determine whether the single-chip microcomputer receives the correct setting reply frames in sequence.

After the single-chip microcomputer sends the time setting instruction to the corresponding smart meter according to the set time and the second or third table address, if the single-chip microcomputer reads the corresponding table address, it will reply to the single-chip microcomputer with a correctly set reply frame, and execute step S207; If the corresponding table address is not copied, send an error reply frame to the upper computer, and return to step S201.

S207: If the single-chip microcomputer receives the reply frames with correct settings in sequence, it determines whether the delay time is reached.

If the single-chip microcomputer receives the correct response frames in turn, it means that the single-chip microcomputer reads the corresponding meter address, and the corresponding smart meter delays and waits for the energy meter to store across minutes. Afterwards, it is determined whether the delay time has reached, and if the delay time has reached, step S208 is performed; if the delay time has not reached, step S207 is continued.

S208: If the delay time is reached, stop the data delay across minutes.

If the delay time is reached, it means that the electric energy meter freezes the data in minutes, and then stops the data delay across minutes.

S209: Determine whether the number of times of time setting reaches a preset value.

After the delay waits for the electric energy meter to store across minutes, it is necessary to determine whether the number of time settings reaches the preset value. For example, taking the relevant data that is required to be saved once every 1 minute as an example, the number of time nodes involved is 525,600 minutes. If the number of time setting times does not reach the preset value, step S210 is performed; if the number of time setting times reaches the preset value, step S211 is performed.

S210: If the number of time setting times does not reach the preset value, update the setting time, and send a time setting instruction to the smart meter again according to the updated setting time until the number of time setting times reaches the preset value.

If the number of time settings does not reach the preset value, it means that the test of the electric energy meter has not been completed. It is necessary to continue the test, update the set time, and send the time setting command to the smart meter again according to the updated set time until the number of time settings reaches the preset value. Achieving a short-term implementation test for one year of data storage compliance. When updating the set time, the microcontroller directly adds one minute to the original timestamp to obtain the new set time.

S211: If the number of time settings reaches a preset value, the test is completed, and a test completion data frame is sent to the upper computer.

If the number of time settings reaches the preset value, the test of the electric energy meter is completed, and the test completion data frame is sent to the upper computer to realize the minute freezing test of the electric energy meter.

When a single communication serial port of the microcontroller is connected to multiple smart meters, the multiple smart meters can communicate cyclically, and the original waiting time can be reasonably used to fully utilize the test time and improve the test efficiency. In the actual detection process, multiple windows can be performed at the same time, which realizes the minute freeze traversal method of the multi-channel parallel multi-core module electric energy meter, thereby effectively improving the test efficiency and shortening the test time.

Most of the existing test methods are to directly interact with the data of the electric energy meter through the test software through the host computer, including the setting of the relevant time data and the reading of the frozen data. Taking the relevant data that is required to be saved once every 1 minute as an example, the number of time nodes involved is 525,600 (1 year = 60*24*365 minutes = 525,600 minutes), and the time of the meter needs to be modified 525,600 times. The communication time between the PC and the meter is 300ms calculation, the time required to complete the functional test is 525600*300ms=157680s=43.8h. The multi-meter parallel traversal test method for freezing the multi-core module electric energy meter in minutes provided by the embodiment of the present application realizes the interaction of the electric energy meter data through the single chip microcomputer, and replaces the original communication setting of the upper computer by using the lower computer to set the time of the electric energy meter Method, compared with PC software, the processing speed of single-chip microcomputer has a great improvement in response speed. According to the baud rate of different communication serial ports, the communication time is about 100ms, and the time to complete the function test is 525600*100ms=14.6h, As a result, the time required for the test is greatly reduced, and the test efficiency is effectively improved.

Based on the multi-meter parallel traversal test method for minute freezing of multi-core module electric energy meters described in the above embodiments, the embodiment of the present application also provides a multi-meter parallel traversal test system for minute freezing of multi-core module electric energy meters.

The multi-meter parallel traversal test system for minute freezing of multi-core module electric energy meters provided by the embodiment of the present application includes:

The upper computer is connected to the single-chip computer for communication, and is used to send the time setting instruction of the smart meter to the single-chip computer.

The single-chip microcomputer is equipped with multiple communication serial ports. The communication serial ports are connected to the smart meter for communication. They are used to forward the time setting instruction to the corresponding smart meter according to the set time and meter address. Store until the number of time settings reaches the preset value. In this example, each communication serial port of the single-chip microcomputer can be connected to a smart meter in one-to-one correspondence, or it can be connected to multiple smart meters.

Other embodiments of the present application will readily suggest themselves to those skilled in the art upon consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of this application and include common knowledge or common technical means in the technical field not disclosed in this application . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the application being indicated by the content of the claims.

The above-described embodiments of the present application do not limit the protection scope of the present application.

Claims (8)

1. A multi-meter parallel traversal testing method for minute freezing of an electric energy meter with a multi-core module is characterized by comprising the following steps:

the upper computer sends a time setting instruction of the intelligent electric meter to the single chip microcomputer;

the single chip microcomputer sends a time setting instruction to the corresponding intelligent electric meter according to the setting time and the meter address, the upper computer sends a meter number setting command to the single chip microcomputer, and the single chip microcomputer solidifies the meter address of the intelligent electric meter according to the meter address of the meter address cache region;

judging whether the single chip microcomputer receives a correct reply frame;

if the single chip microcomputer receives the correct reply frame, the single chip microcomputer sends a time setting instruction to the intelligent electric meter according to the timestamp of the data frame sent by the upper computer and the solidified meter address;

judging whether the single chip microcomputer receives a reply frame with correct setting;

if the single chip microcomputer receives a reply frame with correct setting, delaying to wait for the electric energy meter to store for a period of minutes;

judging whether the time setting times reach a preset value or not;

if the time setting times do not reach a preset value, updating the setting time, and sending a time setting instruction to the intelligent ammeter again according to the updated setting time until the time setting times reach the preset value;

and if the time setting times reach a preset value, the test is finished, and a test finished data frame is sent to the upper computer.

2. The multi-meter parallel traversal testing method for the minute freezing of the multi-core module electric energy meter according to claim 1, wherein the step of sending a time setting instruction to the corresponding intelligent electric meter by the single chip microcomputer according to the setting time and the meter address comprises the following steps:

the upper computer sends a meter number reading command;

the single chip microcomputer forwards the meter number reading command to a corresponding serial port;

judging whether the single chip microcomputer receives a correct reply frame;

if the single chip microcomputer receives the correct reply frame, storing a table address corresponding to the table number to a table address cache region of the single chip microcomputer;

and the single chip microcomputer sends a time setting instruction to the corresponding intelligent electric meter according to the timestamp of the data frame sent by the upper computer and the cached table address framing.

3. The multi-meter parallel traversal testing method for multi-core module electric energy meter minute freezing of claim 1, wherein the delay waiting for the electric energy meter to store across minutes comprises:

the delay time is the difference between the second time of one minute and the second time of the set time.

4. The multi-meter parallel traversal test method for minute freeze of a multi-core module electric energy meter as claimed in claim 1, wherein updating the set time comprises:

and the singlechip directly adds 1 to the preset time and minutes to update the set time.

5. A multi-meter parallel traversal testing method for minute freezing of an electric energy meter with a multi-core module is characterized by comprising the following steps:

the method comprises the following steps that a plurality of intelligent electric energy meters with different meter addresses are hung below a communication serial port of a single chip microcomputer, and after the electric energy meters and equipment are powered on, an upper computer sends an intelligent electric meter time setting instruction to the single chip microcomputer;

the single chip microcomputer sends a time setting instruction to the corresponding intelligent electric meter according to the setting time and the first meter address;

judging whether the single chip microcomputer receives a reply frame with correct setting;

if the single chip microcomputer receives a reply frame with correct setting, starting to store the electric energy meter in a time-delay mode spanning minutes;

the single chip microcomputer sequentially sends time setting instructions to the corresponding intelligent electric meters according to the setting time and the residual meter addresses;

judging whether the single chip microcomputer receives correctly set reply frames in sequence;

if the single chip microcomputer receives the correctly set reply frames in sequence, judging whether the delay time is up;

if the delay time is up, stopping the data delay of the cross-minute;

judging whether the time setting times reach a preset value or not;

if the time setting times do not reach a preset value, updating the setting time, and sending a time setting instruction to the intelligent ammeter again according to the updated setting time until the time setting times reach the preset value;

and if the time setting times reach a preset value, the test is finished, and a test finished data frame is sent to the upper computer.

6. The utility model provides a many meters of freezing of multicore module electric energy meter minute are parallel to be traversed test system which characterized in that includes:

the upper computer is in communication connection with the single chip microcomputer and is used for sending a time setting instruction of the intelligent electric meter to the single chip microcomputer;

and the single chip microcomputer is provided with a plurality of communication serial ports, the communication serial ports are in communication connection with the intelligent electric meter and are used for forwarding time setting instructions to the corresponding intelligent electric meter according to the setting time and the meter address, and when the time setting instructions are correctly set, the single chip microcomputer delays to wait for the electric energy meter to store in a time-spanning mode until the time setting times reach a preset value.

7. The multi-core module electric energy meter minute freezing multi-meter parallel traversal test system as claimed in claim 6, wherein each communication serial port is connected with the smart meters in a one-to-one correspondence manner.

8. The multi-meter parallel traversal test system for minute freeze of a multi-core module electric energy meter as claimed in claim 6, wherein each communication serial port is connected to a plurality of the smart meters.

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