CN211481002U - Monitoring terminal for low-voltage metering box - Google Patents

Monitoring terminal for low-voltage metering box Download PDF

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Publication number
CN211481002U
CN211481002U CN202020289031.4U CN202020289031U CN211481002U CN 211481002 U CN211481002 U CN 211481002U CN 202020289031 U CN202020289031 U CN 202020289031U CN 211481002 U CN211481002 U CN 211481002U
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China
Prior art keywords
module
chip
control chip
pin
sampling
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CN202020289031.4U
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Chinese (zh)
Inventor
姚诚
孙雯
吴晓政
占伟星
马伟阳
单卡迪
商丽君
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Zhejiang Bada Electronic Instruments Co ltd
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Zhejiang Bada Electronic Instruments Co ltd
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Priority to CN202020289031.4U priority Critical patent/CN211481002U/en
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Abstract

The utility model relates to a low pressure measurement is monitor terminal for case, including power module, main control module and support, main control module includes circuit board, control chip and collection system, and power module links to each other with control chip, and collection system links to each other with control chip, is connected with storage module, bluetooth module and display module on the control chip; the utility model has the advantages that: gather the environmental information of table case in real time through collection system, and carry out analysis processes through control chip, then respectively through storage module storage, make the operation of table case in normal environmental information, the fault rate of table case has been reduced, display module's setting, can not only show the variable information of monitoring in real time, also can show alarm information through display module when monitoring alarm information, the operating personnel of being convenient for looks up, ensure that operating personnel can be quick acquires the fault reason, thereby realize the quick maintenance of batch meter, operating personnel's working strength has been simplified.

Description

Monitoring terminal for low-voltage metering box
Technical Field
The utility model relates to a low-pressure measurement monitor terminal for case.
Background
The low-voltage metering box is that the scale is the biggest in the electric power thing networking, the most terminal equipment of quantity, it is especially crucial to build intelligent metering box in "ubiquitous electric power thing networking" construction, the metering box of operation now, lack the monitoring of table case temperature and humidity, smoke monitoring, line temperature monitoring's function, lead to the metering box at the operation in-process, the user can't acquire the environmental factor in the metering box, when environmental factor changes, a change for unable very first time perception environmental factor, thereby cause the trouble or the damage of metering box, maintenance personal can't acquire the fault cause, maintenance duration and working strength have been increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to reach the purpose provide a low pressure measurement monitor terminal for case, can be real-time acquire the environmental parameter of table incasement, ensure the normal operating of table case.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme: the utility model provides a low-voltage metering box is with monitor terminal, includes power module, host system and support, be equipped with installation host system's appearance chamber on the support, power module sets up and forms on the support on one of them wallboard in appearance chamber, power module and host system follow the support mounting is on low-voltage metering box's box, host system includes circuit board, control chip and the collection system who is used for gathering environmental information, collection system and control chip all set up on the circuit board, power module links to each other with control chip, collection system links to each other with control chip, be connected with storage module, bluetooth module and display module on the control chip.
Preferably, the acquisition device comprises a temperature acquisition assembly, a humidity sensor and a smoke sensor, and the temperature acquisition assembly, the humidity sensor and the smoke sensor are all connected with the control chip.
Preferably, the temperature acquisition assembly comprises a first sampling chip for acquiring the temperature of the incoming line end, a second sampling chip for acquiring the temperature in the terminal shell and a third sampling chip for acquiring the ambient temperature in the meter box, and the first sampling chip, the second sampling chip and the third sampling chip are all packaged on the circuit board through insulation heat conduction.
Preferably, the temperature acquisition assembly comprises three first sampling chips, and the three first sampling chips respectively acquire the temperatures of the a-phase current loop, the B-phase current loop and the C-phase current loop.
Preferably, the circuit board comprises a smoke sampling circuit, the smoke sampling circuit comprises an optical coupler, an interface pin, a diode, a first resistor, a second resistor, a third resistor, a capacitor, a 3.3V power supply terminal, a 12V power supply terminal and a ground electrode, one end of the interface pin is connected with the smoke sensor, the other end of the interface pin is connected with a second pin of the optical coupler through a first resistor, the first pin of the optical coupler is connected with a 12V power supply end, the 12V power supply end is connected with a first resistor through a capacitor, the cathode of the diode is connected with a 12V power supply end, the anode of the diode is connected with a first resistor, and a fourth pin of the optical coupler is connected with the control chip through a second resistor, a third pin of the optical coupler is connected with a grounding electrode, and the 3.3V power supply end is connected with the fourth pin of the optical coupler through a third resistor.
Preferably, the display module comprises a display driving chip and a display screen arranged on the display driving chip, the display driving chip is connected with the control chip through an IIC bus, and the display driving chip is connected with the display screen through a COM pin and an SEG pin.
Preferably, the control chip is further connected with a residual current acquisition module for monitoring the residual current overrun in real time.
Preferably, the control chip is further connected with a three-phase metering and collecting module for metering positive and negative phase electric energy data.
Preferably, a clock sampling module is further connected to the control chip.
Preferably, the bracket is provided with a flange connected with the box body.
To sum up, the utility model has the advantages that: the environmental information of the meter box is collected in real time through the collection device, the analysis processing is carried out through the control chip, and then the information is respectively stored through the storage module, so that the meter box runs in normal environmental information, the failure rate of the meter box is reduced, the setting of the display module can not only display the monitored variable information in real time, but also display the alarm information through the display module when the alarm information is monitored, so that the alarm information is convenient for operators to look up and ensure that the operators can quickly acquire failure reasons, thereby realizing the quick maintenance of the meter box and simplifying the working strength of the operators, secondly, the collected information can be quickly transmitted into a server through the Bluetooth communication module, the storage of data is ensured, and finally, the setting of the power module can realize the continuous power supply of the main control module and ensure the stability of the information collection of the main control module, finally, the power module and the main control module can form an installation whole through the support, the installation area of the whole monitoring terminal is reduced, the installation process is simplified, and the wiring of the low-voltage metering box is ensured.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic structural diagram of a monitoring terminal for a low-pressure metering tank according to the present invention;
fig. 2 is a schematic structural diagram of a power module and a main control module in the present invention;
fig. 3 is a schematic structural diagram of the smoke sampling circuit of the present invention.
Reference numerals:
1 power module, 10 supports, 11 holding chambers, 12 wallboards, 13 turn-ups, 2 main control module, 21 circuit board, 22 control chip, 23 smog sampling circuit, 230 optical coupler, 231 interface pin, 232 diode, 233 first resistance, 234 second resistance, 235 third resistance, 236 condenser, 2373.3V power end, 23812V power end, 239 earth pole, 3 acquisition device, 31 temperature acquisition subassembly, 311 first sampling chip, 312 second sampling chip, 313 third sampling chip, 32 humidity transducer, 33 smog sensor, 4 storage module, 5 bluetooth communication module, 6 display module, 60 display driver chip, 61 display screen, 7 residual current acquisition module, 8 three-phase measurement acquisition module, 9 clock sampling module.
Detailed Description
As shown in fig. 1, 2 and 3, a monitoring terminal for a low-voltage metering box comprises a power supply module 1, a main control module 2 and a bracket 10, the bracket 10 is provided with a cavity 11 for installing the main control module, the power module 1 is arranged on one wall plate 12 of the bracket forming the cavity, the power supply module and the main control module are arranged on the box body of the low-voltage metering box along with the bracket, the main control module 2 comprises a circuit board 21, a control chip 22 and an acquisition device 3 for acquiring environmental information, the acquisition device 3 and the control chip 22 are both arranged on the circuit board 21, the power module 1 is connected with the control chip 22, the acquisition device 3 is connected with a control chip 22, the control chip 22 is connected with a storage module 4, a Bluetooth communication module 5 and a display module 6, the memory module 4 samples MX25L256 chips, and the control chip 22 adopts STM32F103ZE chips of ST.
The environment information of the meter box is collected in real time through the collection device 3, the analysis processing is carried out through the control chip 22, and then the information is respectively stored through the storage module 4, so that the meter box runs in normal environment information, the fault rate of the meter box is reduced, the arrangement of the display module 6 can not only display the monitored variable information in real time, but also display the alarm information through the display module 6 when the alarm information is monitored, is convenient for operators to look up, ensures that the operators can quickly acquire fault reasons, thereby realizing the quick maintenance of the meter box, simplifying the working intensity of the operators, secondly, the collected information can be quickly transmitted into a server through the Bluetooth communication module 5, ensuring the storage of data, and finally, the arrangement of the power supply module 1 can realize the continuous power supply of the main control module 2 and ensure the stability of the information collection of the main control module 2, finally, the power module and the main control module can form an installation whole through the support, the installation area of the whole monitoring terminal is reduced, the installation process is simplified, and the wiring of the low-voltage metering box is ensured.
The Bluetooth communication module 5 adopts a BT112P chip, the BT112P chip is an integrated data transmission module, and the Bluetooth communication module can work in a data transmission mode, can scan and broadcast, simultaneously support master-slave coexistence, support an AT instruction software reset module, restore factory settings and acquire an equipment address; supporting AT instruction to dynamically modify broadcast interval; support AT instruction or external pin to resume factory setting, wherein: the 6 th pin of the BT112P chip is connected to the LY _ RXD pin of the controller chip 22, the 7 th pin of the BT112P chip is connected to the LY _ TXD pin of the controller chip 22, the 16 th pin of the BT112P chip is connected to the LY _ RST pin of the controller chip 22, and the pin is connected to the resistor R50 to ground for pull-down processing, so that the power switch of the BT112P chip can be controlled by the LY _ PCtrl pin of the controller chip 22, when the LY _ PCtrl of the controller chip 22 outputs a low level, the Q4 pin is turned on, and the LY _ VDD of the controller chip 22 outputs 3.3V; when the LY _ PCtrl of the control chip 22 outputs a high level, the Q4 pin is turned off, and the LY _ VDD outputs 0V.
Collection system 3 includes temperature acquisition subassembly 31, humidity transducer 32 and smoke transducer 33, temperature acquisition subassembly 31, humidity transducer 32 and smoke transducer 33 all link to each other with control chip 22, can be real-time to the temperature information of box, humidity information, smoke transducer gathers, ensure the operation of table case operation under normal environment, improve the life of table case, in addition, humidity transducer in this embodiment carries out data interaction through 485 communication mode and control chip 22, carry out real-time sampling analysis through to the table incasement humidity, in time output abnormal humidity through warning information processing and report an emergency and ask for help or increased vigilance information and give collection system or main website. The humidity alarm threshold can be configured locally or remotely according to the field operation condition.
The temperature acquisition assembly comprises a first sampling chip for acquiring the temperature of the wire inlet end, a second sampling chip for acquiring the temperature in the terminal shell and a third sampling chip for acquiring the ambient temperature in the meter box, the first sampling chip, the second sampling chip and the third sampling chip are all packaged on the circuit board 21 through insulation and heat conduction, and can respectively sample the temperature of the environment in the acquisition inlet wire end, the terminal shell and the meter box, thereby improving the quality of temperature acquisition, the temperature acquisition component comprises three first sampling chips which respectively acquire the temperatures of the A-phase current loop, the B-phase current loop and the C-phase current loop, the first sampling chip, the second sampling chip and the third sampling chip all adopt DS18B20 chips, and the second pin of the DS18B20 chip is connected with the DQ pin of the control chip 22, so that the bidirectional communication between the control chip 22 and the DS18B20 is realized.
The circuit board 21 comprises a smoke sampling circuit 23, the smoke sampling circuit 23 comprises an optical coupler 230, an interface pin 231, a diode 232, a first resistor 233, a second resistor 234, a third resistor 235, a capacitor 236, a 3.3V power supply terminal 237, a 12V power supply terminal 238 and a ground electrode 239, one end of the interface pin 231 is connected with the smoke sensor 33, the other end of the interface pin 231 is connected with the second pin of the optical coupler 230 through the first resistor 233, the first pin of the optical coupler 230 is connected with the 12V power supply terminal 238, the 12V power supply terminal 238 is connected with the first resistor 232 through the capacitor 236, the cathode of the diode 232 is connected with the 12V power supply terminal 238, the anode of the diode 232 is connected with the first resistor 233, the fourth pin of the optical coupler 230 is connected with the control chip 22 through the second resistor 234, the third pin of the optical coupler 230 is connected with the ground electrode 239, the 3.3V power end 237 is connected with the fourth pin of the optical coupler 230 through the third resistor 235, can monitor the state information of the smoke sensor in real time, judge and process the alarm information, when the working state signal of the smoke sensor is collected to be 1, the smoke in the meter box is read and marked, the smoke alarm information is generated, the meter box monitoring terminal transmits the alarm information to the concentrator or a remote master station system through the Bluetooth communication module 5 in time for corresponding processing, and when the working state signal of the smoke sensor is collected to be 0, the smoke state in the meter box is normal.
The display module 6 comprises a display driving chip 60 and a display screen 61 arranged on the display driving chip, the display driving chip 60 is connected with the control chip 22 through an IIC bus, the display driving chip 60 is connected with the display screen 61 through a COM pin and an SEG pin, monitored variable information can be displayed in real time, alarm information content can be switched when an alarm is monitored, the display driving chip adopts a BR8564 chip with 48 pins, a 17 th pin of the BR8564 chip is connected with an LCD _ SDA pin of the control chip 22, a 16 th pin of the BR8564 chip is connected with an LCD _ SCL pin of the control chip 22, the control chip 22 is also connected with a residual current collecting module 7 for monitoring the excess of current in real time, the excess of residual current can be monitored in real time, and the residual current can be reported actively in time, the residual current collecting module in the embodiment adopts a metering chip ATT7053B to complete sampling, the 19 th pin and the 20 th pin of the metering chip are connected with the ATT7053_ TXD pin and the ATT7053_ RXD pin of the control chip 22, the communication mode of the metering chip and the control chip 22 adopts a UART communication mode, and the communication baud rate is 4800 bit/s.
The control chip 22 is also connected with a three-phase metering and collecting module 8 for metering positive and negative phase electric energy data, the three-phase metering and collecting module in the embodiment adopts a HT7036 metering chip, and can meter the positive and negative phase electric energy data, wherein the metering chip exchanges data with the control chip 22 through an SPI bus, a 25 th pin of the metering chip is connected with an ADE _ CS pin of the control chip 22, and a 26 th pin of the metering chip is connected with an ADE _ SCLK pin of the control chip 22; the 27 th pin of the metering chip is connected with the ADE _ DIN pin of the control chip 22, and the 28 th pin of the metering chip is connected with the ADE _ DOUT pin of the control chip 22; the 32 th pin of the metering chip is connected with the ADE _ R \ S \ T \ pin of the control chip 22, the 32 th pin is a reset pin of the metering chip, the control chip 22 is also connected with the clock sampling module 9, the clock module in the embodiment adopts an RS8025T clock sampling chip, accurate clock information can be provided, if a user can acquire information that the temperature of the box body is over-limit, the user can conveniently and quickly read alarm information.
Be equipped with the turn-ups 13 that links to each other with the box on the support 10, can realize the quick installation of table case monitor terminal on the box of table case, and can realize through support 10 that power module 1 and host system 2 form a whole, reduced holistic installation area, simplified holistic mounting process, turn-ups 13 can ensure that support 10 is steady to be installed on the box, improves the fixed quality of support 10.
In addition to the preferred embodiments described above, other embodiments of the present invention are also possible, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope of the present invention defined by the appended claims.

Claims (10)

1. A monitor terminal for a low-pressure metering box is characterized in that: including power module, host system and support, be equipped with installation host system's appearance chamber on the support, power module sets up and forms on the support on one of them wallboard in appearance chamber, power module and host system follow the support mounting is on the box of low pressure batch meter, host system includes circuit board, control chip and is used for gathering the collection system of environmental information, collection system and control chip all set up on the circuit board, power module links to each other with control chip, collection system links to each other with control chip, be connected with storage module, bluetooth module and display module on the control chip.
2. The monitoring terminal for the low-pressure metering tank is characterized in that the collecting device comprises a temperature collecting component, a humidity sensor and a smoke sensor, and the temperature collecting component, the humidity sensor and the smoke sensor are all connected with a control chip.
3. The monitoring terminal for the low-voltage metering box is characterized in that the temperature acquisition assembly comprises a first sampling chip for acquiring the temperature of a wire inlet end, a second sampling chip for acquiring the temperature in a terminal shell and a third sampling chip for acquiring the ambient temperature in a meter box, and the first sampling chip, the second sampling chip and the third sampling chip are packaged on a circuit board through insulation and heat conduction.
4. The monitoring terminal for the low-voltage metering box is characterized in that the temperature acquisition component comprises three first sampling chips, and the three first sampling chips are used for respectively acquiring the temperatures of the phase-A current loop, the phase-B current loop and the phase-C current loop.
5. The monitoring terminal for the low-voltage metering box as claimed in claim 2, wherein the circuit board comprises a smoke sampling circuit, the smoke sampling circuit comprises an optical coupler, an interface pin, a diode, a first resistor, a second resistor, a third resistor, a capacitor, a 3.3V power supply end, a 12V power supply end and a ground electrode, one end of the interface pin is connected with the smoke sensor, the other end of the interface pin is connected with the second pin of the optical coupler through the first resistor, the first pin of the optical coupler is connected with the 12V power supply end, the 12V power supply end is connected with the first resistor through the capacitor, the cathode of the diode is connected with the 12V power supply end, the anode of the diode is connected with the first resistor, the fourth pin of the optical coupler is connected with the control chip through the second resistor, and the third pin of the optical coupler is connected with the ground electrode, and the 3.3V power supply end is connected with a fourth pin of the optical coupler through a third resistor.
6. The monitoring terminal for the low-voltage metering box is characterized in that the display module comprises a display driving chip and a display screen arranged on the display driving chip, the display driving chip is connected with the control chip through an IIC bus, and the display driving chip is connected with the display screen through a COM pin and an SEG pin.
7. The monitoring terminal for the low-voltage metering box is characterized in that a residual current acquisition module for monitoring the residual current overrun in real time is further connected to the control chip.
8. The monitoring terminal for the low-voltage metering box is characterized in that a three-phase metering and collecting module for metering positive and negative phase electric energy data is further connected onto the control chip.
9. The monitoring terminal for the low-voltage metering box is characterized in that a clock sampling module is further connected to the control chip.
10. The monitoring terminal for the low-pressure metering tank is characterized in that a flange connected with the tank body is arranged on the support.
CN202020289031.4U 2020-03-10 2020-03-10 Monitoring terminal for low-voltage metering box Active CN211481002U (en)

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Application Number Priority Date Filing Date Title
CN202020289031.4U CN211481002U (en) 2020-03-10 2020-03-10 Monitoring terminal for low-voltage metering box

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Application Number Priority Date Filing Date Title
CN202020289031.4U CN211481002U (en) 2020-03-10 2020-03-10 Monitoring terminal for low-voltage metering box

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CN211481002U true CN211481002U (en) 2020-09-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111351525A (en) * 2020-03-10 2020-06-30 浙江八达电子仪表有限公司 Meter box monitoring terminal based on ubiquitous power internet of things

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111351525A (en) * 2020-03-10 2020-06-30 浙江八达电子仪表有限公司 Meter box monitoring terminal based on ubiquitous power internet of things

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