CN216595359U - Construction line inspection device for completion inspection of metering device - Google Patents
Construction line inspection device for completion inspection of metering device Download PDFInfo
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- CN216595359U CN216595359U CN202122783262.8U CN202122783262U CN216595359U CN 216595359 U CN216595359 U CN 216595359U CN 202122783262 U CN202122783262 U CN 202122783262U CN 216595359 U CN216595359 U CN 216595359U
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Abstract
The utility model relates to a construction line inspection device for completion inspection of a metering device, which comprises a main machine and an extension machine which are electrically connected, wherein the extension machine comprises: the extension is arranged on the side of the mutual inductor and provided with a marking line which is used for clamping an outlet wire on the secondary side of the mutual inductor; the extension set comprises a second wiring terminal, a second line-checking information sending unit, a second power management unit, a second three-phase power source and a second main control unit, wherein the second main control unit comprises a second keyboard management module, a second ARM manager, a second LCD display module, a second UART interface, a second SPI interface and a second USB interface; the extension line-checking module comprises an 8-to-1 multi-channel control chip and a photoelectric isolator which are electrically connected; the utility model has reasonable design, compact structure and convenient use.
Description
Technical Field
The utility model relates to the technical field of electric energy measurement, in particular to a construction line inspection device for completion inspection of a metering device.
Background
The quality and accuracy of installation of the electric energy metering device are directly related to the personal interests of users and electric power enterprises, and professional personnel are organized by an electricity management department to carry out comprehensive examination and acceptance before the electric energy metering device is put into operation. The method aims to find and correct errors in installation work in time, check whether the installation quality and the wiring process of the metering device meet requirements or not, approve relevant technical management parameters and provide accurate technical data information for establishing customer files. At present, the construction survey line of the metering device mainly adopts a universal meter, the metering device adopts tools such as a battery, a direct current voltage ammeter, a universal meter, a clamp type ammeter and the like to check and accept after completion, the technical level, the working experience and the like of the personnel to be examined and accepted are influenced, and the result of the completion and acceptance of the metering device is unsatisfactory.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a construction line inspection device for the completion inspection of a metering device. The utility model analyzes the advantages and disadvantages of the prior metering device on-site construction line-checking detection method, provides a construction line-checking device for completion check of the metering device based on an information coding technology and a plurality of selection technologies, and solves the technical problem of difficult line-checking of the electric energy metering device on-site construction.
In order to solve the problems, the technical scheme adopted by the utility model is as follows:
a construction inspection device for completion inspection of metering devices comprises a main machine and an extension machine which are electrically connected:
the extension is arranged on the side of the mutual inductor and provided with a marking line for clamping an outlet wire on the secondary side of the mutual inductor;
the extension set comprises a second wiring terminal, a second line-checking information sending unit, a second power management unit, a second three-phase power source and a second main control unit, wherein the second main control unit comprises a second keyboard management module, a second ARM manager, a second LCD display module, a second UART interface, a second SPI interface and a second USB interface;
the extension line-checking module comprises an 8-to-1 multi-channel control chip and a photoelectric isolator which are electrically connected;
the host is arranged on the side of the electric energy meter and used for sequentially checking the wiring of the end of the electric energy meter;
the host comprises a first wiring terminal, a first line inspection information receiving unit, a first power management unit, a first electric energy metering unit and a first main control unit;
the first main control unit comprises a first ARM manager which is electrically connected with a first keyboard management module,
The device comprises a first WiFi module, a first temperature and humidity sensor, a first LCD display module, a first RS485 interface, a first UART interface, a first SPI interface and a first USB interface;
the first ARM manager is respectively and electrically connected with the first wiring terminal, the first line checking information receiving unit,
A first electric energy metering unit;
the first wiring terminal is used for electrically connecting a corresponding line of the electric energy meter, and the first line inspection information receiving unit is used for receiving a line signal fed back by the extension;
the first ARM manager exchanges information with the first electric energy metering unit through a first SPI interface, the first RS485 interface is used for reading electric energy meter data, the first UART interface is used for connecting with the line checking module,
the first wire checking signal receiving module is arranged on the host machine and is sequentially connected with different wires through the wire checking meter pen,
receiving line-checking coding signal from extension, and using photoelectric coupler to connect UART of ARM manager
An oral receiving end;
the first line-checking information receiving module is communicated with the second line-checking information sending module to realize the line-checking function of the metering device during construction.
As a further improvement of the above technical solution:
the host computer receives the wire setting signal and compares the wire setting signal with the wire connected with the host computer to judge the corresponding relation between the wires connected with the host computer and the extension computer.
A first power management unit for supplying power, an interface of the first LCD display module and a table
The wiring of the electric energy meter is displayed in a graphic mode so as to prompt the wrong wiring and the correct connection; the first electric energy metering unit adopts a meter and is used for metering the line inspection information received by the first ARM manager;
the first WiFi module is used for communicating with an upper computer, and the first temperature and humidity sensor is used for measuring the temperature and the humidity of the site environment in real time;
the first LCD display module is used for displaying input parameter information, line inspection information and line information;
the first USB interface is connected with a first USB flash disk for data storage and test data export.
The extension sets send detection signals with the wire setting information on different outgoing lines.
The second line-checking information sending module comprises an 8-to-1 multi-channel control chip U8 and a 7-channel photoelectric isolator U1-U7 which are electrically connected; pins 1, 16 and 13 of the 1-from-8 multi-channel control chip U8 are respectively connected with output signals of input upper relay control signals KA1-KA 3; the pin 8 is connected with an emitting electrode of a triode Q1, a base electrode of the triode Q1 is connected with a transmitting signal TXD through a current limiting resistor R1, and a collector electrode of the triode Q1 is grounded, so that different transmitting signals TXD are corresponding to different pin 8 voltages; pins 4-7 and 12-9 are respectively connected with a pin 2 corresponding to the 7-path photoelectric isolator U1-U7, a pin 1 of the 7-path photoelectric isolator U1-U7 is connected with voltage, the pin 4 is connected with the voltage through a divider resistor RB1-7, and the pin 3 is respectively connected with a two-transformer metering device through an outgoing line clamp of a wire checking interface JIO
The secondary side Ua, Ub, Uc, Ia +, Ia-, Ic +, Ic-;
the first line-checking information receiving module comprises a photoelectric coupler U9, an interface JIP, a logic gate U10A,
Logic gate U10B;
the interface JIP is connected with a photoelectric coupler U9 after receiving the transmitting signal TXD, and the output of the photoelectric coupler U9
The output pin 4 is connected with voltage, and the pin 3 is logically judged through a logic gate U10A and a logic gate U10B which are connected in series and then input to a first ARM manager through a line RXD for identifying an input transmitting signal TXD
A corresponding line.
The utility model relates to a detection device integrating the construction line inspection, completion acceptance and commissioning detection of a metering device. The work efficiency of field workers is greatly improved, the reliability of completion acceptance is improved, and the accuracy of the operation of the metering device is confirmed.
The field constructor needs to know the metering device that the mutual inductor and the electric energy meter are not at the same position accurately
The corresponding relation of each wire of the secondary circuit, the extension is arranged on the side of the mutual inductor, the wire marked by the extension is connected with the outgoing wire of the secondary side of the mutual inductor, the host is arranged on the side of the electric energy meter, the wiring of the end of the electric energy meter is checked in sequence, the extension sends detection signals with specific information of the wire on different wires, and the host receives the signals in sequence to judge the corresponding relation of the wires connected with the host and the extension. And sequentially finishing all wiring checks, and displaying the wiring of the electric energy meter by a host interface in a form and graphic mode to prompt wiring errors and correct connection.
The extension is connected with the secondary side of the mutual inductor in the power failure state, the black clamp is filled with the zero line, and the other 9 clamps
The test signals are respectively clamped in U1, U2, U3, I1+, I1-, I2+, I2-, I3+ and I3-according to the line attributes (if the wiring mode is three-phase and three-wire, the U2 and the I2 clamp are suspended), the extension sets of 'cycle test', 'only test voltage wire', 'only test current wire', 'test one by one' are selected according to the test habit to respectively inject the test signals into the corresponding test wires,
the attributes of the wire are determined after receipt by the host to complete the wire check.
The main machine is arranged at the side of the electric energy meter, the black clamp clamps the zero line in the power failure state, and the red meter pens are required to detect one by one
And connecting the lines of the electric energy meter to complete the wiring of checking the corresponding relation of each line. And marking one parallel connection line after receiving one line information, and completing the test until all lines are marked. The utility model has the advantages of reasonable design, low cost, firmness, durability, safety, reliability, simple operation, time and labor saving, capital saving, compact structure and convenient use.
Drawings
FIG. 1 is a functional block diagram of the present invention;
FIG. 2 is a block diagram of a module for sending line-checking information according to the present invention;
FIG. 3 is a block diagram of the line-lookup information receiving of the present invention;
figure 4 is a block diagram of the extension of the present invention.
FIG. 5 is a block diagram of a host according to the present invention.
FIG. 6 is a diagram of a host computer line-checking function interface according to the present invention.
Fig. 7 is a functional interface diagram of the extension line-checking of the present invention.
Fig. 8 is a simplified wiring diagram of the present invention using installation.
FIG. 9 is a block diagram of the major modules of the present invention.
Detailed Description
As shown in fig. 1-9, the construction line inspection device of the metering device comprises a host and an extension which are electrically connected: not clear in the drawing
Clearly, the scope of the utility model is not affected.
The branch machine is arranged on the side of the mutual inductor, the marking line of the branch machine is clamped on the outgoing line of the secondary side of the mutual inductor, the host machine is arranged on the side of the electric energy meter, and the wiring of the end of the electric energy meter is sequentially checked.
The extension set sends detection signals with the setting information of the lead on different outgoing lines, and the host is connected in sequence
The wire setting signal is received and compared with the wire connected with the host machine to judge the corresponding relation of the wires connected with the host machine and the extension machine. And sequentially finishing all wiring checks, and displaying the wiring of the electric energy meter by a host interface in a form and graphic mode to prompt wiring errors and correct connection.
The host computer and the extension computer adopt a 32-bit ARM manager, a high-speed 32-bit DSP, a 16-bit A/D, a large-capacity FLASH, a standard USB memory, a 5-inch color liquid crystal display and a capacitive touch screen, and software adopts a latest uCOSIII operating system, a uCGUI graph and a FatFs file system.
The first embodiment is as follows:
as shown in fig. 1 to 9, an embodiment of the present invention provides a metering device construction line inspection device, which includes a host and an extension;
the host comprises a first wiring terminal, a first line inspection information receiving unit, a first power management unit, a first electric energy metering unit and a first main control unit;
the first main control unit comprises a first ARM manager which is electrically connected with a first keyboard management module, a first WiFi module, a first temperature and humidity sensor, a first LCD display module, a first RS485 interface, a first UART interface, a first SPI interface and a first USB interface;
the first ARM manager is electrically connected with the first wiring terminal, the first line inspection information receiving unit and the first electric energy metering unit respectively;
the first wiring terminal is used for electrically connecting a corresponding line of the electric energy meter, and the first line inspection information receiving unit is used for receiving a line signal fed back by the extension; the first electric energy metering unit is a conventional checked meter and is used for metering the line inspection information received by the first ARM manager;
the first WiFi module is used for communicating with an upper computer, and the first temperature and humidity sensor is used for measuring the temperature and the humidity of the site environment in real time; the first LCD
The display module is used for displaying input parameter information, line inspection information and line information;
first ARM manager exchanges information through first SPI interface and first electric energy measurement unit, and first RS485 interface is used for copying and reads the electric energy meter data, and first UART interface is used for being connected with the module of looking for a telephone switchboard, and first USB interface connection has first USB flash disk to carry out data storage, test data and derive.
The first ARM manager adopts a low-power-consumption and high-performance programmable microprocessor with the model of LPC1788FDB 208; the first power management unit is a chargeable 12V battery, and is converted into four direct current power supplies of 5V, 3.3V, +12V and-12V through a power converter to supply power to each module.
The first wire checking signal receiving module is arranged on the host machine and is sequentially connected with different wires through the wire checking meter pen,
and receiving a line-checking coding signal transmitted by the extension, and accessing the line-checking coding signal to a UART interface receiving end of the ARM manager through a photoelectric coupler.
And the display module adopts a 5-inch high-resolution true color LCD display screen to display the data of the field test.
The extension set comprises a second wiring terminal, a second line-checking information sending unit, a second power management unit, a second three-phase power source and a second main control unit, wherein the second main control unit comprises a second keyboard management module, a second ARM manager, a second LCD display module, a second UART interface, a second SPI interface and a second USB interface.
The line-checking module of the extension comprises an 8-to-1 multi-channel control chip and a photoelectric isolator, and the host machine compiles different corresponding codes for each channel and sequentially sends the codes on corresponding wires.
The second ARM manager adopts a low-power-consumption and high-performance programmable microprocessor with the model of LPC1788FDB 208; the second power management unit is a chargeable 12V battery which is converted into a 5V battery by a power converter,
3.3V, +12V, -12V four kinds of direct current power supply.
The first line inspection information receiving module is communicated with the second line inspection information sending module to realize the line inspection function of the metering device during construction; the second line inspection information sending module is arranged on the extension, and a second UART interface of a second ARM manager sequentially sends out wire coding signals through a MAX308 ESP; the first line-checking information receiving module is arranged on the host, sequentially connected with different wires through a line-checking meter pen of the host, receives line-checking coded signals sent by the extension, and is connected with a first UART (universal asynchronous receiver/transmitter) of the first ARM manager through a photoelectric coupler U9
And receiving the interface.
Example two:
as shown in fig. 1 to 9, an embodiment of the present invention provides a method for inspecting a line of a metering device in field construction:
(1) the ground terminals of the extension are connected with the ground wires of the field, and the outgoing line clamps of the line inspection interface JIO are respectively connected with Ua, Ub, Uc, Ia +, Ia-, Ic + and Ic-on the secondary side of the transformer of the metering device.
(2) The second ARM manager of the extension passes through the TXD channel of the second UART interface
And MAX308ESP circularly sends coding information special for the corresponding wire clamp on each wire clamp.
(3) The host computer is arranged at the side of the electric energy meter, the ground wire terminal is connected with the ground wire of the site, and the meter pen is used for sequentially detecting the electric energy meter
The terminal, the extension, the lead and the host form a test loop; the ARM manager of the host receives information sent by the extension through the UART interface RXD, analyzes information content, and an LCD display screen of the host displays the definition of a lead connected with a tested terminal on the side of the transformer to prompt workers.
Example three:
referring to fig. 1-9, the second routing module communication includes an 8-to-1 multiplexing control chip U8, 7
A circuit photoelectric isolator U1-U7; pins 1, 16 and 13 of the 1-from-8 multi-channel control chip U8 are respectively connected with output signals of input upper relay control signals KA1-KA 3; the pin 8 is connected with an emitting electrode of a triode Q1, a base electrode of the triode Q1 is connected with a transmitting signal TXD through a current limiting resistor R1, and a collector electrode of the triode Q1 is grounded, so that different transmitting signals TXD are corresponding to different pin 8 voltages; pins 4-7 and 12-9 are respectively connected with a pin 2 corresponding to the 7-path photoelectric isolator U1-U7, a pin 1 of the 7-path photoelectric isolator U1-U7 is connected with voltage, the pin 4 is connected with the voltage through a voltage dividing resistor RB1-7, and the pin 3 is respectively connected with Ua, Ub, Uc, Ia +, Ia-, Ic + and Ic-on the secondary side of the transformer of the metering device through a lead-out wire clamp of a wire checking interface JIO.
The first line-checking information receiving module comprises a photoelectric coupler U9, an interface JIP, a logic gate U10A,
Logic gate U10B;
the interface JIP is connected with a photoelectric coupler U9 after receiving the transmitting signal TXD, and the output of the photoelectric coupler U9
The output pin 4 is connected with a voltage, and the pin 3 is logically judged through the logic gate U10A and the logic gate U10B which are connected in series and then input to the first ARM manager through a line RXD so as to identify a line corresponding to the input transmitting signal TXD.
The present invention has been described in sufficient detail for clarity of disclosure and is not admitted to be prior art
An example is.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for explaining the present invention
Limit it; 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; it is obvious as a person skilled in the art to combine several aspects of the utility model. 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 (4)
1. A construction inspection line device for measuring device completion inspection, its characterized in that: host computer and extension including the electricity is connected:
the extension is arranged on the side of the mutual inductor and provided with a marking line for clamping an outlet wire on the secondary side of the mutual inductor;
the extension set comprises a second wiring terminal, a second line-checking information sending unit, a second power management unit, a second three-phase power source and a second main control unit, wherein the second main control unit comprises a second keyboard management module, a second ARM manager, a second LCD display module, a second UART interface, a second SPI interface and a second USB interface;
the extension line-checking module comprises an 8-to-1 multi-channel control chip and a photoelectric isolator which are electrically connected;
the host is arranged on the side of the electric energy meter and used for sequentially checking the wiring of the end of the electric energy meter;
the host comprises a first wiring terminal, a first line inspection information receiving unit, a first power management unit, a first electric energy metering unit and a first main control unit;
the first main control unit comprises a first ARM manager which is electrically connected with a first keyboard management module, a first WiFi module, a first temperature and humidity sensor, a first LCD display module, a first RS485 interface, a first UART interface, a first SPI interface and a first USB interface;
the first ARM manager is electrically connected with the first wiring terminal, the first line inspection information receiving unit and the first electric energy metering unit respectively;
the first wiring terminal is used for electrically connecting a corresponding line of the electric energy meter, and the first line inspection information receiving unit is used for receiving a line signal fed back by the extension;
the first ARM manager exchanges information with the first electric energy metering unit through a first SPI interface, the first RS485 interface is used for reading electric energy meter data, the first UART interface is used for connecting with the line checking module,
the first line-checking signal receiving module is arranged on the host, is sequentially connected with different conducting wires through a line-checking meter pen, receives line-checking coding signals transmitted by the extension, and is connected to a UART interface receiving end of the ARM manager through a photoelectric coupler;
the first line-checking information receiving module is communicated with the second line-checking information sending module to realize the line-checking function of the metering device during construction.
2. A construction hunting device for completion inspection of a metering device according to claim 1, wherein: the host computer receives the wire setting signal and compares the wire setting signal with the wire connected with the host computer to judge the corresponding relation between the wires connected with the host computer and the extension computer.
3. A construction hunting device for completion inspection of a metering device according to claim 1, wherein: the first power supply management unit is used for providing electric energy, and the interface of the first LCD display module displays the wiring of the electric energy meter in a form and graphic mode so as to prompt the wiring error and correct connection; the first electric energy metering unit adopts a meter and is used for metering the line inspection information received by the first ARM manager;
the first WiFi module is used for communicating with an upper computer, and the first temperature and humidity sensor is used for measuring the temperature and the humidity of the site environment in real time;
the first LCD display module is used for displaying input parameter information, line inspection information and line information;
the first USB interface is connected with a first USB flash disk for data storage and test data export.
4. A construction hunting device for completion inspection of a metering device according to claim 1, wherein: the extension sets send detection signals with the wire setting information on different outgoing lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122783262.8U CN216595359U (en) | 2021-11-15 | 2021-11-15 | Construction line inspection device for completion inspection of metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122783262.8U CN216595359U (en) | 2021-11-15 | 2021-11-15 | Construction line inspection device for completion inspection of metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216595359U true CN216595359U (en) | 2022-05-24 |
Family
ID=81644631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122783262.8U Active CN216595359U (en) | 2021-11-15 | 2021-11-15 | Construction line inspection device for completion inspection of metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216595359U (en) |
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2021
- 2021-11-15 CN CN202122783262.8U patent/CN216595359U/en active Active
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