CN218037296U - Embedded detection device based on IR46 intelligent electric energy meter - Google Patents
Embedded detection device based on IR46 intelligent electric energy meter Download PDFInfo
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- CN218037296U CN218037296U CN202221927849.XU CN202221927849U CN218037296U CN 218037296 U CN218037296 U CN 218037296U CN 202221927849 U CN202221927849 U CN 202221927849U CN 218037296 U CN218037296 U CN 218037296U
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Abstract
The utility model discloses a based on embedded detection device of IR46 intelligent ammeter belongs to intelligent ammeter and detects technical field. The utility model discloses a detection device automated inspection, whole liberated the manpower, also avoided the cost-push that artifical data collection leads to simultaneously, and the problem that the rate of accuracy is low, ensured the reliability of intelligent ammeter quality to detection efficiency reduces has further been improved.
Description
Technical Field
The utility model relates to an intelligence electric energy meter detects technical field, in particular to based on embedded detection device of IR46 intelligence electric energy meter.
Background
With the implementation of the International Recommendation 46 (IR 46 for short) of the electric energy meter newly revised and completed by the International legal metering Organization (OIML), the content of the International Recommendation covers the metering requirement, the technical requirement and the legal management requirement of the electric energy meter, so that the quality problems such as clock battery under-voltage problem, hardware components and the like in the intelligent electric energy meter need to be detected, and the influence on the practicability of the intelligent electric energy meter due to faults is avoided.
The existing intelligent electric energy meter detection is usually completed manually, namely, the intelligent electric energy meter to be delivered from a factory is detected through the assembly line detection of workers.
However, the prior art has at least the following problems:
the manual detection not only has the problems of increased cost and low accuracy caused by detection personnel, but also has the problem that when ineffectiveness such as epidemic diseases and the like occur, part of the detection personnel cannot arrive at the post to cause reduction of detection efficiency.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem of the prior art, the embodiment of the utility model provides a based on embedded detection device of IR46 intelligent electric energy meter. The technical scheme is as follows:
the utility model provides a based on embedded detection device of IR46 intelligent ammeter, detection device include four detecting element, and every detecting element includes four detection circuitry, and every detection circuitry detects single intelligent ammeter, detection circuitry includes:
the device comprises a main control chip circuit, a metering acquisition circuit, a power consumption acquisition circuit, a 485 communication circuit and a storage circuit;
the main control chip circuit is in signal connection with the metering acquisition circuit;
the main control chip circuit is in signal connection with the power consumption acquisition circuit;
the main control chip circuit is in signal connection with the 485 communication circuit
The main control chip circuit is in signal connection with the storage circuit;
the metering acquisition circuit comprises a metering chip and three detection ends, and the metering chip is connected with the three detection ends through a connecting circuit.
Optionally, the power consumption acquisition circuit includes a multi-stage operational amplifier circuit and an acquisition circuit.
Optionally, the main control chip circuit at least includes a main control chip, the metering acquisition circuit at least includes a metering chip, and the storage circuit at least includes a storage chip.
Optionally, the detection unit further includes a switching power supply, and the switching power supply supports an ac input voltage of 57.7V to 380V.
Optionally, the 485 communication circuit adopts a full isolation circuit.
Optionally, the main control chip is an MCU chip HT6025, the metering chip is a dedicated metering chip HT7038, and the memory chip is a multistage 512K flash chip in series.
Alternatively to this, the first and second parts may,
the 485 communication circuit is used for receiving a detection task of the MES system;
the main control chip circuit is used for initializing the detection unit according to the detection task and setting a test point;
after the intelligent electric energy meter to be detected is connected to the detection end, the main control chip circuit is used for controlling the metering acquisition circuit and the power consumption acquisition circuit to acquire data and temporarily storing the acquired data to the storage circuit;
the 485 communication circuit is used for uploading the acquired data;
and the main control chip circuit is used for carrying out function detection on the intelligent electric energy meter to be detected according to the acquired data.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is:
the detection device automatically detects, liberates manpower in the whole process, simultaneously avoids the cost increase caused by manually collecting data, solves the problem of low accuracy, ensures the reliability of the quality of the intelligent electric energy meter, and further improves the detection efficiency.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments 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 it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a detection device provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a metering and collecting circuit structure provided by the embodiment of the present invention;
fig. 3 is a schematic diagram of a communication circuit according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, an embedded detection device based on IR46 intelligent electric energy meter is provided, the detection device includes four detection units, each detection unit includes four detection circuits, each detection circuit detects a single intelligent electric energy meter, and the detection circuits include:
the device comprises a main control chip circuit, a metering acquisition circuit, a power consumption acquisition circuit, a 485 communication circuit and a storage circuit;
the main control chip circuit is in signal connection with the metering acquisition circuit;
the main control chip circuit is in signal connection with the power consumption acquisition circuit;
the main control chip circuit is in signal connection with the 485 communication circuit
The main control chip circuit is in signal connection with the storage circuit;
the metering acquisition circuit comprises a metering chip and three detection ends, and the metering chip is connected with the three detection ends through a connecting circuit.
Referring to fig. 2, the metering and collecting circuit includes a metering chip HT7038 dedicated for a three-phase electric energy meter, and the connection between the metering chip and three detection terminals through a connection circuit specifically includes:
the REFCAP port (port 3) is respectively connected with one end of a capacitor C611 and one end of a capacitor C608; the other end of the capacitor C611 and the other end of the capacitor C608 are grounded;
the AGND port (No. 6 port, no. 9 port and No. 13 port) is grounded;
an AVCC port (No. 10 port) is connected with one end of a resistor R620, one end of a capacitor C617, one end of a capacitor C616 and one end of a capacitor C620;
the other end of the resistor R620 is connected with 3.3V voltage; the other end of the capacitor C617 is connected with the other end of the capacitor C616; the other end of the capacitor C620 is grounded;
the VAP port (No. 12 port) is connected with one end and the acquisition end of the capacitor C619; the other end of the capacitor C619 is grounded;
the VAN port (No. 13 port) is connected with one end of a capacitor C622 and one end of a resistor R629, and the other end of the capacitor C622 and the other end of the resistor R629 are grounded;
the VBP port (No. 14 port) is connected with one end of the capacitor C621 and the acquisition end; the other end of the capacitor C621 is grounded;
the VBN port (No. 15 port) is connected with one end of a capacitor C624 and one end of a resistor R631, and the other end of the capacitor C624 and the other end of the resistor R631 are grounded;
an AVCC port (No. 16 port) is connected with one end of a capacitor C620, and the other end of the capacitor C620 is grounded;
a VCP port (No. 17 port) is connected with one end of the capacitor C623 and the acquisition end; the other end of the capacitor C623 is grounded;
a VCN port (port 18) is connected with one end of a capacitor C618 and one end of a resistor R627, and the other end of the capacitor C618 and the other end of the resistor R627 are grounded;
a GND port (port 19) and a SLEEP port (port 22) are connected with one end of a capacitor C607, and a grounding GND port (port 23) is connected with one end of a capacitor C606 and one end of the capacitor C607 and is grounded; the other end of the capacitor C606 and the other end of the capacitor C607 are connected with a VCC port (No. 24 port) and connected with a 3.3V power supply;
a VDD port (port No. 29) is connected to one end of the capacitor C600 and one end of the capacitor C602; the other end of the capacitor C600 is grounded with the other end of the capacitor C602;
an OSCO port (port 31) is connected with one end of a resistor R638, a first end of a safety resistor F601 and one end of a capacitor C605;
the OSCI port (port 30) is connected with the other end of the resistor R638, the second end of the fuse resistor F601 and one end of the capacitor C626;
the other end of the capacitor C626, the other end of the capacitor C605 and the third end of the fuse resistor F601 are grounded.
The power consumption acquisition circuit comprises a multistage operational amplifier circuit and an acquisition circuit, wherein the error of the power consumption acquisition precision is less than 0.1%.
Referring to fig. 3, the 485 communication circuit includes:
the IC301 chip is connected in a manner that:
the RO port (port 1) is connected with the receiving end and is connected with one end of a resistor R301, and the other end of the resistor R301 is connected with the VCPU;
the RE port (No. 2 port) and the RD port (No. 3 port) are connected with the enabling end;
the DI port (port 4) is connected with the sending end and is connected with one end of a resistor R302, and the other end of the resistor R302 is connected with the VCPU;
the GND port (No. 5 port) is grounded;
port a (port No. 6) is connected to one end of the resistor R304, one end of the first semiconductor discharge tube, one end of the second semiconductor discharge tube, and one end of the first variable resistor, respectively; the other end of the resistor R304 is connected with VCPU; the other end of the first semiconductor discharge tube is grounded;
the port B (port 7) is respectively connected with one end of a resistor R303, one end of a third semiconductor discharge tube, the other end of a second semiconductor discharge tube and one end of a second variable resistor; the other end of the third semiconductor discharge tube is grounded;
the other end of the resistor R303 is grounded, and one end of the capacitor C301 is connected; the other end of the capacitor C301 is connected with VCPU;
the VCC port (port 8) is connected to the VCPU and to the other end of the capacitor C301.
Optionally, the main control chip circuit at least includes a main control chip, and the storage circuit at least includes a storage chip;
the main control chip adopts a multifunctional, high-performance and low-power-consumption 256K MCU chip HT6025, a Cortex-M0 processor, a clock management unit, a power management unit, a hardware automatic temperature compensation RTC unit, a PLL unit, a high-frequency RC unit, a low-frequency RC unit, an LCD drive unit and the like, and NVIC and DEBUG debugging functions are integrated in the main control chip, and a 32.768Khz chip clock source is used as an RTC clock source in the main control chip.
The metering chip adopts a metering chip HT7038 special for a multifunctional high-precision three-phase electric energy meter, and is characterized by comprising the following components: high precision, the nonlinear measurement error is less than 0.1%; the SPI communication interface is arranged, and the rate can reach 10Mbps; and gain and phase correction of a full digital domain is supported.
The storage chip is formed by serially connecting multi-level 512K flash chips, the chips adopt an IIC communication protocol, the chips have the advantages of being large in erasable times, not losing in storage and the like, storage of big data is guaranteed, and the storage circuit can store 50000G of data.
The 485 communication circuit adopts a full isolation circuit, so that the reliability of communication is ensured, the main control chip is protected, and the main control chip is prevented from being burnt out by external heavy current through the communication circuit.
Optionally, the detection unit further includes a switching power supply, and the switching power supply supports an ac input voltage of 57.7V to 380V.
In the alternative,
the 485 communication circuit is used for receiving the detection task of the MES system;
the main control chip circuit is used for initializing the detection unit according to the detection task and setting a test point;
after the intelligent electric energy meter to be detected is connected to the detection end, the main control chip circuit is used for controlling the metering acquisition circuit and the power consumption acquisition circuit to acquire data and temporarily storing the acquired data to the storage circuit;
the 485 communication circuit is used for uploading the acquired data;
the main control chip circuit is used for carrying out function detection on the intelligent electric energy meter to be detected according to the acquired data.
The utility model provides a detection device is by the direct management and control of MES, and data and MES are interactive, and whole journey has liberated the manpower, has also avoided artifical data collection to make mistakes simultaneously. The large data interaction is realized, the data with the storage length of more than half a year can be stored, the storage capacity reaches thousands G, and the data tracing is really realized. The quality safety of the intelligent electric energy meter is ensured.
The utility model relates to an based on embedded detection device of IR46 intelligent ammeter, through 4 mutually independent, mutual noninterference's unit simultaneous working, during single unit trouble, during the maintenance this unit, other units can normally work. 4 work epitopes per unit, 4 units are equivalent to 16 epitopes and work simultaneously, so that the time is saved by 920 seconds, the production efficiency is improved by 23 times, and the daily productivity of the electric energy meter of a company is improved by 23 times.
The utility model relates to an based on embedded detection device of IR46 intelligent electric energy meter, the collection precision is more accurate, and collection system adopts the special metering chip of country to replace traditional analog conversion, and it is qualified through the verification of national professional measuring instrument, and the precision has reached 0.1% to the error accuracy degree of company's table meter has been improved.
The utility model relates to a based on embedded detection device of IR46 intelligent electric energy meter, the power adopts switching power supply, supports AC input 57.7V ~ 380V voltage. The intelligent electric energy meter compatible with IR46 multi-core management meets the detection work of various electric energy meters in the market, and the full-automatic equipment saves the expense of the company by about 900000 yuan/year.
All above-mentioned optional technical scheme can adopt arbitrary combination to form the optional embodiment of this utility model, and the no longer repeated description herein one by one.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The embedded detection device based on the IR46 intelligent electric energy meter is characterized in that the detection device comprises four detection units, each detection unit comprises four detection circuits, each detection circuit detects a single intelligent electric energy meter, and the detection circuits comprise:
the device comprises a main control chip circuit, a metering acquisition circuit, a power consumption acquisition circuit, a 485 communication circuit and a storage circuit;
the main control chip circuit is in signal connection with the metering acquisition circuit;
the main control chip circuit is in signal connection with the power consumption acquisition circuit;
the main control chip circuit is in signal connection with the 485 communication circuit
The main control chip circuit is in signal connection with the storage circuit;
the metering acquisition circuit comprises a metering chip and three detection ends, and the metering chip is connected with the three detection ends through a connecting circuit.
2. The detection device according to claim 1, wherein the power consumption acquisition circuit comprises a multi-stage operational amplifier circuit and an acquisition circuit.
3. The device of claim 2, wherein the main control chip circuit comprises at least a main control chip and the memory circuit comprises at least a memory chip.
4. The detection device according to claim 3, wherein the detection unit further comprises a switching power supply, and the switching power supply supports an AC input voltage of 57.7V-380V.
5. The detecting device for detecting the rotation of a motor rotor as claimed in claim 4, wherein the 485 communication circuit adopts a full-isolation circuit.
6. The detection device according to claim 5, wherein the main control chip is an MCU chip HT6025, the metering chip is a dedicated metering chip HT7038, and the memory chip is a multi-stage 512Kflash chip in series.
7. The detection apparatus according to claim 6,
the 485 communication circuit is used for receiving a detection task of the MES system;
the main control chip circuit is used for initializing the detection unit according to the detection task and setting a test point;
after the intelligent electric energy meter to be detected is connected to the detection end, the main control chip circuit is used for controlling the metering acquisition circuit and the power consumption acquisition circuit to acquire data and temporarily storing the acquired data to the storage circuit;
the 485 communication circuit is used for uploading the acquired data;
and the main control chip circuit is used for carrying out function detection on the intelligent electric energy meter to be detected according to the acquired data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221927849.XU CN218037296U (en) | 2022-07-25 | 2022-07-25 | Embedded detection device based on IR46 intelligent electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221927849.XU CN218037296U (en) | 2022-07-25 | 2022-07-25 | Embedded detection device based on IR46 intelligent electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218037296U true CN218037296U (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221927849.XU Active CN218037296U (en) | 2022-07-25 | 2022-07-25 | Embedded detection device based on IR46 intelligent electric energy meter |
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| CN (1) | CN218037296U (en) |
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2022
- 2022-07-25 CN CN202221927849.XU patent/CN218037296U/en active Active
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