CN111398888A - Low-power-consumption dynamic monitoring device and equipment of intelligent electric meter and using method - Google Patents
Low-power-consumption dynamic monitoring device and equipment of intelligent electric meter and using method Download PDFInfo
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Abstract
The embodiment of the invention relates to a low-power-consumption dynamic monitoring device and equipment of an intelligent ammeter and a using method of the low-power-consumption dynamic monitoring device. The resistance value of the sampling resistor is automatically switched in the gear selection module through the microcontroller according to the low power consumption current of the tested intelligent electric meter, the current and voltage data of the tested intelligent electric meter are collected in real time through the ADC module, the current and voltage data are processed and analyzed through the microcontroller and then are output through the communication module, a real-time power consumption curve is displayed on the display device and is stored in the memory according to the data tested by the tested intelligent electric meter and the graphic format of the curve, the real-time dynamic power consumption of the tested intelligent electric meter can be monitored in real time through the device, the problem that the current intelligent electric meter generally passes through conventional static power consumption testing detection before being installed is solved, and the battery undervoltage fault still occurs.
Description
Technical Field
The invention relates to the technical field of human body temperature detection, in particular to a low-power-consumption dynamic monitoring device and equipment of an intelligent ammeter and a using method.
Background
The intelligent electric meter is one of basic devices for data acquisition of an intelligent power grid (particularly an intelligent power distribution network), bears the tasks of original electric energy data acquisition, metering and transmission, and is the basis for realizing information integration, analysis optimization and information display.
Since 2009 electronic smart meters were widely used, various kinds of fault information also appeared in the smart meters during use. At present, after investigation, if data of a 2018 fault electric energy meter collected by a certain unit is subjected to statistical analysis, 64.3 pieces of fault data are recorded, wherein the under-voltage of a clock battery and the clock abnormality respectively account for 67.38% and 16.51%, the first 2 bits of the occurrence probability of the famous column fault account for 83.89% in total, and the clock abnormality is usually caused by the instantaneous under-voltage of the clock battery, and if the problem of the under-voltage of the clock battery can be solved, the problem of the 83.89% fault can be basically solved.
The clock under-voltage of the intelligent ammeter is partly because of the quality reason of the battery, for example, the capacity of battery is not enough or the battery discharge ability is not enough, but bigger reason is because the low-power consumption of ammeter is designed improperly, has reasons such as the hardware circuit design is unreasonable, software design defect, and conventional laboratory detects and generally uses the universal meter to concatenate into power supply circuit and measures the average consumption of ammeter, does not measure the real-time consumption of ammeter, leads to the ammeter to appear quality problems.
Disclosure of Invention
The embodiment of the invention provides a low-power-consumption dynamic monitoring device and equipment of an intelligent electric meter and a using method, which are used for solving the technical problem that the conventional intelligent electric meter is generally detected through a conventional static power consumption test before meter installation, and the battery under-voltage fault still occurs.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
a low-power-consumption dynamic monitoring device of an intelligent electric meter comprises a microcontroller, and a power module, a communication module, a key module, a power box and a gear selection module which are connected with the microcontroller, wherein the gear selection module is also connected with a switch element, and an ADC (analog-to-digital converter) module for collecting the voltage of the intelligent electric meter to be measured is arranged on the microcontroller;
the power supply box is used for being connected with the tested intelligent electric meter and providing power for the tested intelligent electric meter, and a first connecting end and a second connecting end are arranged on the power supply box;
the gear selection module is used for providing different test specifications for the tested intelligent electric meter;
the switch element is used for controlling whether the power supply box supplies power to the tested intelligent ammeter or not;
the key module is used for controlling whether the low-power-consumption dynamic monitoring device of the intelligent ammeter works or not;
the power module is used for at least supplying power to the microcontroller, the communication module and the key module;
the microcontroller is used for selecting a test specification at the gear selection module according to the power consumption current of the tested intelligent electric meter, controlling the ADC module to collect the current and voltage of the tested intelligent electric meter and processing and analyzing the collected current and voltage;
the communication module is used for being in communication connection with display equipment and transmitting the electric signal output by the microcontroller to the display equipment;
and the display equipment is used for displaying the power consumption of the tested intelligent electric meter according to the electric signal.
Preferably, the microcontroller is further provided with a calculation module for calculating the power consumption of the tested smart meter and a judgment module for judging whether the battery of the tested smart meter is abnormal or not.
Preferably, the determining module determines the current and voltage collected by the ADC module according to whether the measured smart meter is in a working state, and specifically includes:
when the tested intelligent electric meter is in a non-working state, if the voltage of the tested intelligent electric meter collected by the ADC module is less than 3.3V, the battery of the tested intelligent electric meter is under-voltage; if the current of the tested intelligent electric meter collected by the ADC module is larger than 27.4 muA, the power supply of the battery of the tested intelligent electric meter is abnormal;
when the tested intelligent electric meter is in a working state, if the voltage of the tested intelligent electric meter collected by the ADC module is less than 3.3V, the battery of the tested intelligent electric meter is under-voltage; and if the current of the tested intelligent electric meter collected by the ADC module is more than 2.7 muA, the power supply of the battery of the tested intelligent electric meter is abnormal.
Preferably, the chip of the microcontroller is a chip of model HT 6025.
Preferably, the ADC module includes a voltage sampling circuit and a current sampling circuit for collecting the tested smart electric meter battery, and the ADC module is provided with a third connecting end and a fourth connecting end.
Preferably, the low-power dynamic monitoring device of the intelligent electric meter further comprises a multimeter used for testing whether the low-power dynamic monitoring device of the intelligent electric meter normally works, the positive connecting end of the multimeter is connected with the third connecting end, and the negative connecting end of the multimeter is connected with the fourth connecting end.
The embodiment of the invention also provides a use method of the low-power dynamic monitoring device of the intelligent electric meter, which comprises the following steps:
disconnecting the battery of the tested intelligent electric meter, wherein the disconnected connecting end of the battery of the tested intelligent electric meter is respectively connected with the first connecting end and the second connecting end;
the method comprises the steps that a switch element is closed, a low-power-consumption dynamic monitoring device of the intelligent electric meter is powered on, an ADC (analog to digital converter) module selects a resistor with a test specification according to the power consumption current of the tested intelligent electric meter to sample a voltage signal of a battery of the tested intelligent electric meter, the power consumption of the battery of the tested intelligent electric meter is calculated through a calculation module of a microcontroller, and the ADC module processes and calculates the sampled voltage signal to obtain the battery current of the tested intelligent electric meter;
judging the battery voltage and the battery current of the tested intelligent electric meter through a judging module of the microcontroller to obtain whether the battery of the tested intelligent electric meter is abnormal or not, and storing the monitored data;
the display device reads the battery voltage, the current and the power consumption of the tested intelligent electric meter in real time through the communication module, and displays the read power consumption data through a curve.
Preferably, the step of selecting a test specification to test the smart meter under test comprises:
powering on a low-power dynamic monitoring device of the intelligent ammeter, selecting a fifth test specification by default by the microcontroller, judging whether the current value of the current is greater than 200mA through the current of the tested intelligent ammeter battery collected by the ADC module, and if so, stopping the low-power dynamic monitoring device of the energy ammeter; if not, storing the current value of the tested smart meter battery collected by the ADC module, and judging whether the current value is more than 2mA and less than 20 mA;
if the current value is larger than 2mA and smaller than 20mA, the microcontroller selects a fourth test specification to perform low power consumption test on the tested intelligent ammeter; if the current value is greater than 20mA, the microcontroller selects a fifth test specification to perform low power consumption test on the tested intelligent ammeter, and if the current value is less than 2mA, whether the current value is greater than 200 muA and less than 2mA is judged;
if the current value is larger than 200 muA and smaller than 2mA, the microcontroller selects a third test specification to perform low power consumption test on the tested intelligent ammeter; if the current value is less than 200 muA, judging whether the current value is more than 20 muA and less than 200 muA;
if the current value is larger than 20 muA and smaller than 200 muA, the microcontroller selects a second test specification to perform low power consumption test on the tested intelligent electric meter; and if the current value is less than 20 muA, the microcontroller selects the first test specification to carry out low-power consumption test on the tested intelligent electric meter.
Preferably, before the low-power dynamic monitoring device of the intelligent electric meter is used for monitoring the power consumption of the intelligent electric meter to be detected in real time, whether the low-power dynamic monitoring device of the intelligent electric meter can work normally is monitored through a universal meter.
The invention also provides a device comprising a processor and a memory;
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is used for executing the using method of the low-power dynamic monitoring device of the intelligent ammeter according to the instructions in the program codes.
According to the technical scheme, the embodiment of the invention has the following advantages:
1. the low-power-consumption dynamic monitoring device of the intelligent ammeter automatically switches the resistance value of the sampling resistor in the gear selection module through the microcontroller according to the low-power-consumption current of the tested intelligent ammeter, then the current and voltage data of the tested intelligent ammeter are collected in real time through the ADC module, the current and voltage data are processed and analyzed through the microcontroller and then are output through the communication module, a real-time power consumption curve is displayed on the display equipment and is stored in the memory according to the current tested data of the tested intelligent ammeter and the graphic format of the curve, so that the low-power-consumption dynamic monitoring device of the intelligent ammeter can monitor the real-time dynamic power consumption of the tested intelligent ammeter in real time, and the technical problem that the existing intelligent ammeter is still in an undervoltage battery fault due to the fact that the existing intelligent ammeter is generally tested through a conventional power consumption static test before meter installation is solved;
2. the use method of the low-power consumption dynamic monitoring device of the intelligent ammeter comprises the steps of automatically switching the resistance value of the sampling resistor in the gear selection module through the microcontroller according to the low-power consumption current of the intelligent ammeter to be detected, acquiring the current and voltage data of the intelligent ammeter to be detected in real time through the ADC module, processing and analyzing the current and voltage data through the microcontroller, transmitting the data to the display equipment through the communication module, displaying the real-time power consumption curve on a display device and storing the real-time power consumption curve into a memory according to the data tested by the current tested intelligent electric meter and the graphic format of the curve, the low-power-consumption dynamic monitoring device of the intelligent electric meter can monitor the real-time dynamic power consumption of the tested intelligent electric meter in real time, and also solves the technical problem that the conventional static power consumption test detection is generally carried out before the meter is installed in the conventional intelligent electric meter, and the battery under-voltage fault still occurs.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a block diagram of a low power consumption dynamic monitoring apparatus for a smart meter according to an embodiment of the present invention.
Fig. 2 is a power consumption curve diagram of the smart meter to be monitored by the low power consumption dynamic monitoring device of the smart meter according to the embodiment of the invention.
Fig. 3 is a flowchart illustrating steps of a method for using a low power consumption dynamic monitoring apparatus of an intelligent electric meter according to an embodiment of the present invention.
Fig. 4 is a flowchart illustrating steps of automatically selecting a test specification by a microcontroller according to a method for using a low power consumption dynamic monitoring apparatus of an intelligent electric meter according to an embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Before the intelligent electric meter is installed and used, the electric meter can normally work through conventional detection, but the electric meter detected by the conventional detection method for the intelligent electric meter still has a battery under-voltage fault, the conventional static power consumption test is adopted for the detection of the intelligent electric meter by the conventional detection method, the dynamic power consumption of the intelligent electric meter is not measured, the universal meter test is specifically adopted, and during operation, the battery power supply loop of the intelligent electric meter is disconnected firstly, and then the universal meter is connected in series with the battery power supply loop of the intelligent electric meter.
The existing low-power consumption testing method for the intelligent electric meter aims at static power consumption, so that the intelligent electric meter after detection can have a battery under-voltage fault.
The embodiment of the application provides a low-power-consumption dynamic monitoring device and equipment of a smart electric meter and a using method, and the device and the equipment are used for solving the technical problem that the conventional static power consumption test detection is generally carried out before the meter is installed in the conventional smart electric meter, and the battery under-voltage fault still occurs.
The first embodiment is as follows:
fig. 1 is a block diagram of a low power consumption dynamic monitoring apparatus for a smart meter according to an embodiment of the present invention.
As shown in fig. 1, the embodiment of the present invention provides a low power consumption dynamic monitoring device for a smart meter, including a microcontroller 10, and a power module 20, a communication module 30, a key module 40, a gear selection module 50, and a power box 60 connected to the microcontroller 10, where the gear selection module 50 is further connected to a switch element 70, and the microcontroller 10 is provided with an ADC module 11 for collecting a voltage of the smart meter to be measured. Wherein, this smart electric meter's low-power consumption dynamic monitoring device also can detect the product that has the battery that the power battery is undervoltage, during the test, the product replacement that will have the battery is surveyed smart electric meter can.
The power supply box 60 in the embodiment of the invention is mainly used for connecting with a tested intelligent electric meter and providing power for the tested intelligent electric meter, and the power supply box 60 is provided with a first connecting end and a second connecting end.
It should be noted that the power supply box 60 is mainly an external power supply module provided for the tested smart meter as required, and the power supply box 60 supports single-cell embedding of a single three-phase meter, double-cell embedding of the tested smart meter and an external direct-current power access interface. The external power supply can be provided for the tested intelligent electric meter through the power supply box 60, and when the low-power dynamic monitoring device of the intelligent electric meter continuously tests a plurality of tested intelligent electric meters, the batteries of the tested intelligent electric meters do not need to be installed, the service lives of the batteries of the tested intelligent electric meters cannot be influenced during testing, frequent replacement or installation of the power supply is not needed, and the testing efficiency is improved.
The gear selection module 50 in the embodiment of the present invention is mainly used for providing different test specifications for the smart meter to be tested. At least five test specifications are set on the gear selection module 50, which are respectively a first test specification, a second test specification, a third test specification, a fourth test specification and a fifth test specification, and the five test specifications are shown in the following table:
| test specification | Current range | Potentiometer resistance (ohm) | Measured input voltage range of ADC |
| 1 | 1μA～20μA | 20K | 20mV～400mV |
| 2 | 20μA～200μA | 2K | 40mV～400mV |
| 3 | 200μA～2mA | 200 | 40mV～400mV |
| 4 | 2mA～20mA | 20 | 40mV～400mV |
| 5 | 20mA～200mA | 2 | Default gear of 40 mV-400 mV |
It should be noted that, according to the magnitude of the power consumption current of the tested smart meter, the microcontroller 10 intelligently selects the test specification, and gradually selects the resistance value of the high-precision sampling resistor (i.e. the resistance value of the potentiometer), and the gear selection module 50 is implemented by a high-precision programmable digital potentiometer, or by controlling a plurality of high-precision sampling resistors in a stepping manner through a coding switch. Specifically, a current signal flowing through a sampling resistor is calibrated when a standard 3.3V-4.0V power supply supplies power, and a voltage value and a flowing current value of the current signal are determined; the microcontroller 10 converts the current signal flowing through the resistance into a voltage signal which can be sampled by the ADC module 11, and obtains sampled values of the battery voltage and the current of the smart meter under test. The main reason for designing the gear selection module 50 is that the tested smart meter has a wide low-power consumption test range, which is generally 2 μ a to 80mA according to an actual test reservation range, and a dynamic range ratio of 40000: 1, the conventional AD sampling linear range does not meet the requirement, so the design gear selection module 50 selects different test specifications for testing according to the actual low power consumption of the tested smart meter, and the accuracy of test data is improved. In this embodiment, due to the transient characteristic of power consumption change of the tested smart meter in the working state, the test specification test is automatically selected by the microcontroller according to the real-time power consumption current of the tested smart meter.
The switching element 70 in the embodiment of the present invention is mainly used for controlling whether the power box 60 supplies power to the smart meter under test.
It should be noted that the switch element 70 is preferably a mechanical switch, such as a button, a toggle switch, etc. In the embodiment, the power supply control method is mainly used for controlling the connection and disconnection of the battery of the tested smart meter and the power supply box 60 to control the power supply of the tested smart meter, and the switching element 70 is controlled to be switched on or switched off manually.
The key module 40 in the embodiment of the present invention is mainly used for controlling whether a low power consumption dynamic monitoring device of the smart meter operates.
It should be noted that the key module 40 mainly includes a key, and issues an instruction to the microcontroller whether to start detection or end current detection by triggering the key, in this embodiment, the low power consumption dynamic monitoring device of the smart meter further adopts an L ED lamp to display that the device is currently in a detection state or a stop state, a L ED lamp is turned on to indicate the detection state, and a L ED lamp is turned off to indicate the stop state.
The power module 20 in the embodiment of the present invention is mainly used to supply power to at least the microcontroller 10, the communication module 30, and the key module 40.
It should be noted that, the power module 20 of the low power consumption dynamic monitoring device of the smart meter is connected to the commercial power (commercial power is 220V power), the 220V power is converted into 3V, 5V, and 12V power by the power module 20 to respectively supply power to the micro controller 10, the key module 40, and the communication module 30, and the power module 20 is further connected to the smart meter to be tested, and mainly outputs 220V power to the power box 60 to supply power to the smart meter to be tested by switching of the switch element 70. In the embodiment, the power module 20 and the power box 60 are connected in common, so that the common ground of the low-power dynamic monitoring device of the smart meter is realized.
The microcontroller 10 in the embodiment of the present invention is mainly used for selecting a test specification in the gear selection module 50 according to the power consumption current of the tested smart meter, and controlling the ADC module 11 to collect the current and voltage of the tested smart meter and process and analyze the collected current and voltage. Wherein, ADC module 11 is including being used for gathering the voltage sampling circuit and the current sampling circuit of the smart electric meter battery under test, ADC module 11 is provided with third link and fourth link.
It should be noted that the microcontroller 10 is used to control whether the ADC module 11 starts sampling and processes the sampled data value, and converts the sampled data value into a current value. The microcontroller 10 also controls whether the communication module 30 transmits data to the display device 80. The microcontroller 10 also detects whether the key module 40 is operated in real time, and starts sampling and data transmission according to the operation of the key module 60. Specifically, the microcontroller 10 also buffers and stores the current value in the memory, and then transmits the data to the display device 80 in pieces. This ADC module 11 sets up in microcontroller 10, and microcontroller 10 is from taking AD promptly, and general built-in reference source, 12 bit AD, ADC module 11 mainly are used for gathering the voltage value that gear selection module 50 converted, and the voltage value data that ADC module 11 sampled calculates the sampling current according to the high accuracy sampling resistance value that gear selection module 50 provided again: and I is U/R. In this embodiment, the chip of the microcontroller 10 is a chip of HT6025 model, and the chip of T6025 model has ADC detection therein, and can use the ADC pin to detect, and the maximum detection voltage can reach 5V. The chip of T6025 model can only reach 800mV for other ADC detections. Other ADC sampling pins in a chip with the T6025 model are selected as sampling ends, the voltage sampling range is 0V-0.8V, and the actually measured voltage value calculation method comprises the following steps: VADCIN 0.0258 ADC1DAT +4.7559mV, with a measurement accuracy of 0.0258 mV. The actual measured current range 2 muA-80 mA is converted into a voltage range which can be detected by the ADC module 11 through the gear selection module 50, and according to the calculation method of ADCBAT, in order to ensure the sampling accuracy, the minimum signal must be greater than 4.7559 mV. The power consumption of the intelligent ammeter to be monitored by the low-power-consumption dynamic monitoring device of the intelligent ammeter is monitored by the gear selection module 50 in series connection with a power supply loop of the intelligent ammeter to be monitored, so that normal power supply cannot be influenced after voltage division, normal 3V power supply is generally guaranteed, the voltage of a battery is 3.7V, the voltage division value of the gear selection module 50 is not more than 700mV, a pre-measured value is not more than 500mV, the effective sampling voltage value is 4.7559 mV-500 mV after the gear selection module 50 is adopted to select a test specification, and the monitoring timeliness of the low-power-consumption dynamic monitoring device of the intelligent ammeter is ensured.
The communication module 30 in the embodiment of the present invention is mainly used for being in communication connection with the display device 80 and transmitting the electrical signal output by the microcontroller 10 to the display device 80, and the display device 80 is mainly used for displaying the power consumption of the smart meter under test according to the electrical signal.
It should be noted that the communication module 30 provides a communication channel for forwarding the power consumption data electrical signal processed by the microcontroller 10 to the display device 80, and the communication module 30 converts the UART signal of the T6025 type chip into a signal that can be recognized by the RS232 display device 80. The display device 80 is mainly used for receiving the power consumption data forwarded by the communication module 30, storing the forwarded data in a file, and displaying the power consumption data measured in real time in a graphical interface manner, and a graph showing the dynamic change of the low power consumption of the smart meter detected by the dynamic low power consumption monitoring device of the smart meter can be seen on the display device 80 in real time, as shown in fig. 2. And the dynamic power consumption of the tested intelligent electric meter displayed on the graph is the average dynamic power consumption of the tested intelligent electric meter in the current time period. In this embodiment, the display device 80 may be a terminal device such as a PC, a laptop computer, or an iPad.
The low-power-consumption dynamic monitoring device of the intelligent ammeter automatically switches the resistance value of the sampling resistor in the gear selection module through the microcontroller according to the low-power-consumption current of the intelligent ammeter to be detected, then acquires the current and voltage data of the intelligent ammeter to be detected in real time through the ADC module, processes and analyzes the current and voltage data through the microcontroller, transmits the data to the display device 80 through the communication module, the real-time power consumption curve is displayed on the display device 80 and stored in the memory according to the data tested by the current tested intelligent ammeter and the graphic format of the curve, the low-power-consumption dynamic monitoring device of the intelligent electric meter can monitor the real-time dynamic power consumption of the tested intelligent electric meter in real time, and also solves the technical problem that the conventional static power consumption test detection is generally carried out before the meter is installed in the conventional intelligent electric meter, and the battery under-voltage fault still occurs.
In an embodiment of the invention, the microcontroller 10 is further provided with a calculating module 12 for calculating the power consumption of the smart meter to be tested and a judging module 13 for judging whether the battery of the smart meter to be tested is abnormal or not.
In the embodiment of the present invention, the calculation module 12 calculates the power consumption according to the power consumption calculation formula, which is obtained by collecting the current value of the smart meter to be measured by the ADC module 11, and the power consumption calculation formula is:
wherein R is the resistance of the potentiometer in the selection test specification in the gear selection module 50, RGeneral assemblyFor the resistance of the low-power dynamic monitoring device of the intelligent electric meter, i is the current of the intelligent electric meter to be measured collected by the ADC module 11, T is the time, and P is the average power of the intelligent electric meter to be measured in the time from 0 to T.
The determining module 13 in the embodiment of the present invention mainly determines the current and voltage collected by the ADC module 11 according to whether the measured smart meter is in a working state, and specifically includes:
when the tested intelligent electric meter is in a non-working state, if the voltage of the tested intelligent electric meter collected by the ADC module 11 is less than 3.3V, the battery of the tested intelligent electric meter is under-voltage; if the current of the tested intelligent electric meter collected by the ADC module 11 is larger than 27.4 muA, the power supply of the battery of the tested intelligent electric meter is abnormal;
when the tested intelligent electric meter is in a working state, if the voltage of the tested intelligent electric meter collected by the ADC module 11 is less than 3.3V, the battery of the tested intelligent electric meter is under-voltage; if the current of the tested smart meter collected by the ADC module 11 is greater than 2.7 muA, the power supply of the battery of the tested smart meter is abnormal.
It should be noted that, the microcontroller 10 determines, through the determination module 13, to output a test result of the tested smart meter and displays the power consumption of the tested smart meter on the display device 80 in a graphic form.
In an embodiment of the invention, the low-power dynamic monitoring device of the smart meter further includes a multimeter for testing whether the low-power dynamic monitoring device of the smart meter works normally, a positive connection terminal of the multimeter is connected to the third connection terminal, and a negative connection terminal of the multimeter is connected to the fourth connection terminal.
It should be noted that, the multimeter is mainly used for detecting the low-power consumption dynamic monitoring device of the smart meter, and can normally test the tested smart meter. Specifically, disconnect switch element 70 earlier, will be surveyed smart electric meter's battery and power pack 60 and be connected, later with switch element 70 closure, the positive pole link and the third link of universal meter are connected, detect this smart electric meter's whether low-power consumption dynamic monitoring device is normal after the negative pole link and the fourth link of universal meter are connected, disconnect switch element 70 after the detection. The low-power dynamic monitoring device of the intelligent electric meter is detected through the universal meter, so that the low-power dynamic monitoring device of the intelligent electric meter can work normally when the intelligent electric meter to be detected is monitored. In the present embodiment, a high-precision digital multimeter is preferably used.
Example two:
fig. 3 is a flowchart illustrating steps of a method for using a low power consumption dynamic monitoring apparatus of an intelligent electric meter according to an embodiment of the present invention.
As shown in fig. 3, an embodiment of the present invention further provides a method for using a low power consumption dynamic monitoring apparatus of a smart meter, including the following steps:
s1, disconnecting a battery of the tested intelligent electric meter, wherein the disconnected connecting end of the battery of the tested intelligent electric meter is respectively connected with a third connecting end and a fourth connecting end;
s2, the switch element 70 is closed, the low-power-consumption dynamic monitoring device of the intelligent electric meter is powered on, the ADC module 11 selects a resistor with a test specification according to the power consumption current of the tested intelligent electric meter to sample a voltage signal of the battery of the tested intelligent electric meter, the battery power consumption of the tested intelligent electric meter is calculated through the calculation module 12 of the microcontroller 10, and the ADC module 11 processes and calculates the sampled voltage signal to obtain the battery current of the tested intelligent electric meter;
s3, judging the battery voltage and the battery current of the intelligent ammeter to be detected through a judging module 13 of the microcontroller 11 to obtain whether the battery of the intelligent ammeter to be detected is abnormal or not, and storing the monitored data;
and S4, the display device 80 reads the battery voltage, the current and the power consumption of the tested intelligent electric meter in real time through the communication module 30, and displays the read power consumption data through a curve.
In the embodiments of the present invention, the battery power consumption refers to the power of the battery. The operation principles and the components of the switching element 70, the microcontroller 10, the calculating module 12, the judging module 13, the ADC module 11, the communication module 30 and the display device 80 are described in the first embodiment, and will not be described in detail again.
The invention provides a using method of a low-power consumption dynamic monitoring device of an intelligent ammeter, which automatically switches the resistance value of a sampling resistor in a gear selection module through a microcontroller according to the low-power consumption current of the intelligent ammeter to be detected, then collects the current and voltage data of the intelligent ammeter to be detected in real time through an ADC module, processes and analyzes the current and voltage data through the microcontroller, transmits the data to a display device 80 through a communication module, the real-time power consumption curve is displayed on the display device 80 and stored in the memory according to the data tested by the current tested intelligent ammeter and the graphic format of the curve, the low-power-consumption dynamic monitoring device of the intelligent electric meter can monitor the real-time dynamic power consumption of the tested intelligent electric meter in real time, and also solves the technical problem that the conventional static power consumption test detection is generally carried out before the meter is installed in the conventional intelligent electric meter, and the battery under-voltage fault still occurs.
Fig. 4 is a flowchart illustrating steps of automatically selecting a test specification by a microcontroller according to a method for using a low power consumption dynamic monitoring apparatus of an intelligent electric meter according to an embodiment of the present invention.
As shown in fig. 4, in an embodiment of the present invention, the step of selecting a test specification to test the smart meter under test includes:
s21, powering on a low-power dynamic monitoring device of the intelligent electric meter, selecting a fifth test specification by default by a microcontroller, judging whether the current value of the current is greater than 200mA through the current of the tested intelligent electric meter battery collected by an ADC module, and if so, stopping the low-power dynamic monitoring device of the energy electric meter; if not, storing the current value of the battery of the tested intelligent electric meter collected by the ADC module, and judging whether the current value is more than 2mA and less than 20 mA;
s22, if the current value is larger than 2mA and smaller than 20mA, the microcontroller selects a fourth test specification to perform low-power-consumption test on the tested intelligent electric meter; if the current value is greater than 20mA, the microcontroller selects a fifth test specification to perform low power consumption test on the tested intelligent ammeter, and if the current value is less than 2mA, whether the current value is greater than 200 muA and less than 2mA is judged;
s23, if the current value is larger than 200 muA and smaller than 2mA, the microcontroller selects a third test specification to perform low power consumption test on the tested intelligent ammeter; if the current value is less than 200 muA, judging whether the current value is more than 20 muA and less than 200 muA;
s24, if the current value is larger than 20 muA and smaller than 200 muA, the microcontroller selects a second test specification to perform low-power-consumption test on the tested intelligent electric meter; and if the current value is less than 20 muA, the microcontroller selects the first test specification to carry out low-power consumption test on the tested intelligent electric meter.
In an embodiment of the invention, before the low-power dynamic monitoring device of the smart meter is used for monitoring the power consumption of the tested smart meter in real time, whether the low-power dynamic monitoring device of the smart meter can work normally is monitored through a multimeter.
It should be noted that, the multimeter is mainly used for detecting the low-power consumption dynamic monitoring device of the smart meter, and can normally test the tested smart meter. Specifically, disconnect switch element 70 earlier, will be surveyed smart electric meter's battery and ADC module 11 and be connected, later with switch element 70 closure, the positive pole link and the third link of universal meter are connected, detect this smart electric meter's whether low-power consumption dynamic monitoring device is normal after the negative pole link and the fourth link of universal meter are connected, disconnect switch element 70 after the detection. The low-power dynamic monitoring device of the intelligent electric meter is detected through the universal meter, so that the low-power dynamic monitoring device of the intelligent electric meter can work normally when the intelligent electric meter to be detected is monitored.
Example three:
the embodiment of the invention provides equipment, which comprises a processor and a memory;
a memory for storing the program code and transmitting the program code to the processor;
and the processor is used for executing the use method of the low-power dynamic monitoring device of the intelligent ammeter according to the instructions in the program codes.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The low-power-consumption dynamic monitoring device of the intelligent electric meter is characterized by comprising a microcontroller, a power module, a communication module, a key module, a power box and a gear selection module, wherein the power module, the communication module, the key module, the power box and the gear selection module are connected with the microcontroller;
the power supply box is used for being connected with the tested intelligent electric meter and providing power for the tested intelligent electric meter, and a first connecting end and a second connecting end are arranged on the power supply box;
the gear selection module is used for providing different test specifications for the tested intelligent electric meter;
the switch element is used for controlling whether the power supply box supplies power to the tested intelligent ammeter or not;
the key module is used for controlling whether the low-power-consumption dynamic monitoring device of the intelligent ammeter works or not;
the power module is used for at least supplying power to the microcontroller, the communication module and the key module;
the microcontroller is used for selecting a test specification at the gear selection module according to the power consumption current of the tested intelligent electric meter, controlling the ADC module to collect the current and voltage of the tested intelligent electric meter and processing and analyzing the collected current and voltage;
the communication module is used for being in communication connection with display equipment and transmitting the electric signal output by the microcontroller to the display equipment;
and the display equipment is used for displaying the power consumption of the tested intelligent electric meter according to the electric signal.
2. The device for dynamically monitoring the low power consumption of the smart meter according to claim 1, wherein the microcontroller is further provided with a calculating module for calculating the power consumption of the smart meter to be tested and a judging module for judging whether the battery of the smart meter to be tested is abnormal or not.
3. The device for dynamically monitoring low power consumption of a smart meter according to claim 2, wherein the determining module determines the current and voltage collected by the ADC module according to whether the smart meter under test is in an operating state, and specifically includes:
when the tested intelligent electric meter is in a non-working state, if the voltage of the tested intelligent electric meter collected by the ADC module is less than 3.3V, the battery of the tested intelligent electric meter is under-voltage; if the current of the tested intelligent electric meter collected by the ADC module is larger than 27.4 muA, the power supply of the battery of the tested intelligent electric meter is abnormal;
when the tested intelligent electric meter is in a working state, if the voltage of the tested intelligent electric meter collected by the ADC module is less than 3.3V, the battery of the tested intelligent electric meter is under-voltage; and if the current of the tested intelligent electric meter collected by the ADC module is more than 2.7 muA, the power supply of the battery of the tested intelligent electric meter is abnormal.
4. The low-power dynamic monitoring device for the smart meter according to claim 1, wherein the ADC module comprises a voltage sampling circuit and a current sampling circuit for collecting the battery of the smart meter to be tested, and the ADC module is provided with a third connection terminal and a fourth connection terminal.
5. The device for dynamically monitoring the low power consumption of the smart meter according to claim 1, wherein the gear selection module is provided with at least five test specifications, which are a first test specification, a second test specification, a third test specification, a fourth test specification and a fifth test specification.
6. The low-power dynamic monitoring device of the intelligent electric meter according to claim 4, further comprising a multimeter for testing whether the low-power dynamic monitoring device of the intelligent electric meter works normally, wherein a positive connecting end of the multimeter is connected with the third connecting end, and a negative connecting end of the multimeter is connected with the fourth connecting end.
7. Use method of a low-power dynamic monitoring device of a smart meter, applied to the low-power dynamic monitoring device of the smart meter according to any one of claims 1 to 6, characterized in that the use method comprises the following steps:
disconnecting the battery of the tested intelligent electric meter, wherein the disconnected connecting end of the battery of the tested intelligent electric meter is respectively connected with the third connecting end and the fourth connecting end;
the method comprises the steps that a switch element is closed, a low-power-consumption dynamic monitoring device of the intelligent electric meter is powered on, an ADC (analog to digital converter) module selects a resistor with a test specification according to the power consumption current of the tested intelligent electric meter to sample a voltage signal of a battery of the tested intelligent electric meter, the power consumption of the battery of the tested intelligent electric meter is calculated through a calculation module of a microcontroller, and the ADC module processes and calculates the sampled voltage signal to obtain the battery current of the tested intelligent electric meter;
judging the battery voltage and the battery current of the tested intelligent electric meter through a judging module of the microcontroller to obtain whether the battery of the tested intelligent electric meter is abnormal or not, and storing the monitored data;
the display device reads the battery voltage, the current and the power consumption of the tested intelligent electric meter in real time through the communication module, and displays the read power consumption data through a curve.
8. The method for using the device for dynamically monitoring low power consumption of the smart meter according to claim 7, wherein the step of selecting the test specification to test the smart meter to be tested comprises the steps of:
powering on a low-power dynamic monitoring device of the intelligent ammeter, selecting a fifth test specification by default by the microcontroller, judging whether the current value of the current is greater than 200mA through the current of the tested intelligent ammeter battery collected by the ADC module, and if so, stopping the low-power dynamic monitoring device of the energy ammeter; if not, storing the current value of the tested smart meter battery collected by the ADC module, and judging whether the current value is more than 2mA and less than 20 mA;
if the current value is larger than 2mA and smaller than 20mA, the microcontroller selects a fourth test specification to perform low power consumption test on the tested intelligent ammeter; if the current value is greater than 20mA, the microcontroller selects a fifth test specification to perform low power consumption test on the tested intelligent ammeter, and if the current value is less than 2mA, whether the current value is greater than 200 muA and less than 2mA is judged;
if the current value is larger than 200 muA and smaller than 2mA, the microcontroller selects a third test specification to perform low power consumption test on the tested intelligent ammeter; if the current value is less than 200 muA, judging whether the current value is more than 20 muA and less than 200 muA;
if the current value is larger than 20 muA and smaller than 200 muA, the microcontroller selects a second test specification to perform low power consumption test on the tested intelligent electric meter; and if the current value is less than 20 muA, the microcontroller selects the first test specification to carry out low-power consumption test on the tested intelligent electric meter.
9. The method for using the dynamic monitoring device with low power consumption of the smart meter according to claim 7, wherein before the dynamic monitoring device with low power consumption of the smart meter is used for monitoring the power consumption of the smart meter to be tested in real time, whether the dynamic monitoring device with low power consumption of the smart meter can work normally is monitored through a multimeter.
10. An apparatus comprising a processor and a memory;
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to execute the method for using the low power consumption dynamic monitoring apparatus of a smart meter according to claim 7 according to the instructions in the program code.
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Application publication date: 20200710 |