CN210605701U - Safe energy efficiency acquisition terminal - Google Patents
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- CN210605701U CN210605701U CN201921604069.XU CN201921604069U CN210605701U CN 210605701 U CN210605701 U CN 210605701U CN 201921604069 U CN201921604069 U CN 201921604069U CN 210605701 U CN210605701 U CN 210605701U
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Abstract
The utility model provides a safe energy efficiency acquisition terminal, the acquisition unit of safe acquisition terminal passes through current sampling module, voltage sampling module, switching value input module, residual current sampling module, temperature sampling module, pulse input module and analog input module and acquires current, voltage, switching value, residual current, temperature, pulse and analog signal respectively to send the signal to the treater; the processor receives the signal, acquires and records the electric energy parameter according to the signal, sends the electric energy parameter to a specified object through the communication unit, receives an instruction through the communication unit, changes the working state of the acquisition unit according to the instruction and controls the on and off of the circuit through the control unit. The utility model discloses can gather electric power system's multiple electric energy parameter comprehensively to can provide reference and supplementary for carrying out electric power fine management, fire control safety control, equipment temperature, ambient temperature for the power consumption enterprise, reduce manpower, material resources, financial resources loss.
Description
Technical Field
The utility model relates to an intelligence power consumption field especially relates to a safe efficiency acquisition terminal.
Background
For a long time, the electricity utilization enterprises mostly come from monthly electricity utilization settlement data payment lists of power supply enterprises for the production electricity utilization conditions of the enterprises, and the electricity utilization conditions of the enterprises cannot be known in real time; wherein the power consumption management department of few part enterprises can install the meter to the pertinence to regularly artifical record comparatively single electric energy parameter, if only electric quantity, instantaneous voltage, instantaneous current etc. can produce the used manpower of artifical meter reading like this, and can not realize the monitoring to enterprise power consumption condition real-time data. With the development of wireless communication digital networks, wireless acquisition terminals have become an inevitable trend of development, and the application field of the wireless acquisition terminals has also been expanded to power utilization enterprises. The data that wireless acquisition terminal gathered are not merely the electric energy parameter of gathering the consumption, have also included other data that are favorable to the power consumption enterprise to carry out meticulous management electric power, fire control safety control, if: temperature, remaining capacity, power system harmonics, voltage sag, etc. However, the collection of the power system parameters by the existing collection terminal is single, the actual reference value of the collected power system parameters is low for power consumption enterprises to perform power fine management, fire safety management, equipment temperature and environment temperature, and the collected power system parameters need to be collected again by other equipment according to needs, so that manpower, material resources and financial resources are wasted, and the situations that the data which is really useful for the power consumption enterprises cannot be collected and cannot be collected completely exist.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides a safe efficiency acquisition terminal sets up multiple electric power parameter acquisition module in acquisition unit, can gather electric power system's multiple electric energy parameter comprehensively to can provide reference and supplementary for carrying out electric power fine management, fire control safety control, equipment temperature, ambient temperature for the power consumption enterprise, reduce manpower, material resources, financial loss.
In order to solve the above problem, the utility model discloses a technical scheme do: a safe energy efficiency acquisition terminal comprises a shell, and an acquisition unit, a processor, a control unit and a communication unit which are arranged in the shell, wherein the processor is respectively connected with the acquisition unit, the control unit and the communication unit, and a sampling port and an input port of the acquisition unit are arranged on the shell; the acquisition unit comprises a current sampling module, a voltage sampling module, a switching value input module, a residual current sampling module, a temperature sampling module, a pulse input module and an analog value input module, and acquires current, voltage, switching value, residual current, temperature, pulse and analog value signals respectively through the current sampling module, the voltage sampling module, the switching value input module, the residual current sampling module, the temperature sampling module, the pulse input module and the analog value input module and sends the signals to the processor; the processor receives the signal, acquires and records an electric energy parameter according to the signal, sends the electric energy parameter to a specified object through the communication unit, receives an instruction through the communication unit, changes the working state of the acquisition unit according to the instruction and controls the on and off of a circuit through the control unit.
Further, the communication unit comprises at least one of an RS485 component, an NB-IOT component, a GPRS component and an LORA component.
Furthermore, the safe energy efficiency acquisition terminal further comprises a power supply, and the power supply is respectively connected with the processor, the acquisition unit, the control unit and the communication unit to realize power supply of the processor, the acquisition unit, the control unit and the communication unit.
Further, the control unit includes at least one relay switch by which the closing and opening of the circuit is controlled.
Further, the casing includes first casing, the opposite both sides of first casing extend along the direction of keeping away from first casing and form the stair structure, the stair structure includes first boss, second boss, third boss, fourth boss, first boss, second boss superpose in first casing one side, third boss, fourth boss superpose in first casing opposite side.
Furthermore, a groove is formed in one side of the first shell, the groove is parallel to the second boss, one side of the groove, which is close to the second boss, extends into the side wall of the groove, and the acquisition terminal is fixed on the guide rail through the groove.
Furthermore, one side of the first shell opposite to the groove is provided with an indicator lamp, a key and an infrared communication port of the communication unit, and an antenna of the communication unit is arranged on one side of the first shell, which is provided with the second boss.
Further, the first boss is arranged on one side, far away from the first shell, of the second boss, and the voltage sampling port of the voltage sampling module and the control port of the control unit are arranged on the first boss.
Further, the fourth boss sets up the third boss is kept away from first casing one side, the sampling port of residual current sampling module with the sampling port setting of temperature sampling module is in on the third boss.
Furthermore, the sampling port of the current sampling module, the input port of the switching value input module and the communication port of the communication unit are arranged on one side, far away from the third boss, of the fourth boss.
Compared with the prior art, the beneficial effects of the utility model reside in that: set up multiple electric power parameter acquisition module in the collection unit, can gather electric power system's multiple electric energy parameter comprehensively to can provide reference and supplementary for carrying out electric power fine management, fire control safety control, equipment temperature, ambient temperature for the power consumption enterprise, reduce manpower, material resources, financial resources loss.
Drawings
Fig. 1 is a front view of an embodiment of a safe energy efficiency acquisition terminal of the present invention;
fig. 2 is a top view of an embodiment of the safety energy efficiency acquisition terminal of the present invention;
fig. 3 is a bottom view of an embodiment of the safety energy efficiency acquisition terminal of the present invention;
fig. 4 is an internal structure diagram of an embodiment of the safety energy efficiency acquisition terminal of the present invention;
fig. 5 is a port connection diagram of an embodiment of the safety energy efficiency acquisition terminal of the present invention;
fig. 6 is a port configuration diagram of an embodiment of the safety energy efficiency acquisition terminal of the present invention;
fig. 7 is a wiring diagram of an embodiment of the safety energy efficiency acquisition terminal of the present invention;
fig. 8 is a wiring diagram of another embodiment of the safety energy efficiency acquisition terminal of the present invention;
fig. 9 is a switching value setting interface diagram of an embodiment of the safety energy efficiency acquisition terminal of the present invention;
fig. 10 is a diagram illustrating remote control amount setting of an embodiment of the safety energy efficiency collecting terminal of the present invention;
fig. 11 is a schematic diagram of an embodiment of the safety energy efficiency acquisition terminal of the present invention communicating via a wired RS-485;
fig. 12 is a schematic diagram of the safety energy-efficiency acquisition terminal according to an embodiment of the present invention, which communicates via a wireless remote GPRS/NB-IOT;
fig. 13 is a schematic diagram of the safety energy efficiency acquisition terminal according to an embodiment of the present invention, which communicates through LoRa;
fig. 14 is a display interface diagram of an embodiment of the control device connected to the safety energy efficiency acquisition terminal of the present invention.
In the figure: 11. a first housing; 12. a first boss; 13. a second boss; 14. a third boss; 15. a fourth boss; 21. an antenna; 301. a voltage sampling port; 302. a residual current transformer; 303. a current transformer; 305. a communication card slot 305.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
Referring to fig. 1-14, fig. 1 is a front view of an embodiment of a terminal for collecting energy efficiency; fig. 2 is a top view of an embodiment of the safety energy efficiency acquisition terminal of the present invention; fig. 3 is a bottom view of an embodiment of the safety energy efficiency acquisition terminal of the present invention; fig. 4 is an internal structure diagram of an embodiment of the safety energy efficiency acquisition terminal of the present invention; fig. 5 is a port connection diagram of an embodiment of the safety energy efficiency acquisition terminal of the present invention; fig. 6 is a port configuration diagram of an embodiment of the safety energy efficiency acquisition terminal of the present invention; fig. 7 is a wiring diagram of an embodiment of the safety energy efficiency acquisition terminal of the present invention; fig. 8 is a wiring diagram of another embodiment of the safety energy efficiency acquisition terminal of the present invention; fig. 9 is a switching value setting interface diagram of an embodiment of the safety energy efficiency acquisition terminal of the present invention; fig. 10 is a diagram illustrating remote control amount setting of an embodiment of the safety energy efficiency collecting terminal of the present invention; fig. 11 is a schematic diagram of an embodiment of the safety energy efficiency acquisition terminal of the present invention communicating via a wired RS-485; fig. 12 is a schematic diagram of the safety energy-efficiency acquisition terminal according to an embodiment of the present invention, which communicates via a wireless remote GPRS/NB-IOT; fig. 13 is the utility model discloses safe energy efficiency acquisition terminal passes through the schematic diagram of an embodiment of loRa communication. Fig. 6 is a diagram a of a top port of a safety energy efficiency acquisition terminal, fig. b is a diagram of a bottom port of the safety energy efficiency acquisition terminal, fig. 7 is a wiring diagram of the safety energy efficiency acquisition terminal not connected with a voltage transformer, and fig. 8 is a wiring diagram of the safety energy efficiency acquisition terminal connected with the voltage transformer; fig. 14 is a display interface diagram of an embodiment of the control device connected to the safety energy efficiency acquisition terminal of the present invention, which is described in detail with reference to fig. 1 to 14.
In this embodiment, the acquisition terminal includes a housing, and an acquisition unit, a processor, a control unit, and a communication unit disposed in the housing, wherein the processor is connected to the acquisition unit, the control unit, and the communication unit, respectively, and a sampling port and an input port of the acquisition unit are disposed on the housing; the acquisition unit comprises a current sampling module, a voltage sampling module, a switching value input module, a residual current sampling module, a temperature sampling module, a pulse input module and an analog value input module, and acquires current, voltage, switching value, residual current, temperature, pulse and analog value signals respectively through the current sampling module, the voltage sampling module, the switching value input module, the residual current sampling module, the temperature sampling module, the pulse input module and the analog value input module and sends the signals to the processor; the processor receives the signal, acquires and records the electric energy parameter according to the signal, sends the electric energy parameter to a specified object through the communication unit, receives an instruction through the communication unit, changes the working state of the acquisition unit according to the instruction and controls the on and off of the circuit through the control unit.
In this embodiment, the current sampling module, the voltage sampling module, the switching value input module, the residual current sampling module, the temperature sampling module, the pulse input module, and the analog value input module in the acquisition unit are devices in the prior art, and are not described in detail herein.
In this embodiment, the safe energy efficiency acquisition terminal further includes a display unit, the display unit is disposed on the housing and connected to the processor, and the processor displays the operating state of the safe energy efficiency acquisition terminal and the data acquired by the acquisition unit through the display unit.
In this embodiment, the display unit may be any one of an LED screen, a CRT display screen, and an LCD display screen, and is not limited herein.
In this embodiment, in order to meet the communication requirement of the user, the communication unit includes at least one of an RS485 component, an NB-IOT component, a GPRS component, and an LORA component, and the communication between the security energy efficiency acquisition terminal and a designated object, such as a monitoring background, is implemented through these communication components. In other embodiments, the communication unit may also communicate with the monitoring background through any one of bluetooth, WiFi, internet and 2/3/4/5G network, which is not limited herein.
In a specific embodiment, a communication card slot 305 is formed in the housing, the SIM card is inserted into the communication card slot 305, and the security and energy efficiency acquisition terminal is connected to a GPRS communication network through the SIM card to realize communication with a specified object.
In this embodiment, the safe energy efficiency acquisition terminal further includes a power supply, and the power supply is connected with processor, acquisition unit, communication unit respectively in order to realize the power supply to processor, acquisition unit, communication unit.
In the embodiment of the market, the power supply and the processor are connected with other devices of the safe energy efficiency acquisition terminal through the bus, and in other embodiments, other devices of the safe energy efficiency acquisition terminal can also be independently connected with the processor and the power supply.
In a specific embodiment, the power supply is a voltage and current conversion component, the voltage and current conversion component is connected with an external power supply, and current input by the external power supply is converted into working voltage and working current required by the acquisition unit, the processor and the communication unit through the voltage and current conversion component so as to realize power supply to the safe energy efficiency acquisition terminal. The voltage and current conversion assembly can be directly connected to a 57.7V L-N/100V L-L/220V L-N/380V L-L power supply, and the power supply of the safe energy efficiency acquisition terminal directly takes electricity from the outside without a built-in battery.
In this embodiment, the processor is a single chip, a CPU, an SOC, and other devices capable of processing signals transmitted by the acquisition unit, receiving instructions, and executing instructions, and is not limited herein.
In this embodiment, the control unit comprises at least one relay switch, wherein the closing and opening of the circuit connected by the relay switch control unit.
In a specific embodiment, the number of relay switches is 2.
In this embodiment, the housing of the security and energy efficiency acquisition terminal includes a first housing 11, two opposite sides of the first housing 11 extend in a direction away from the first housing 11 to form a stepped structure, the stepped structure includes a first boss 12, a second boss 13, a third boss 14, and a fourth boss 15, the first boss 12 and the second boss 13 are stacked on one side of the first housing 11, and the third boss 14 and the fourth boss 15 are stacked on the other side of the first housing 11. The first boss 12, the second boss 13, the third boss 14, and the fourth boss 15 are disposed parallel to the first housing 11.
In this embodiment, a groove is formed in one side of the first housing 11, which is located on the back side of the stepped structure, and the groove is parallel to the second boss 13, and one side of the groove, which is close to the second boss 13, extends into the side wall of the groove, so that the collection terminal is fixed on the guide rail through the groove.
In a specific embodiment, the width of the guide rail is 35mm, the depth of the groove is 5mm, the length and width of the bottom surface of the first housing 11 are 72mm and 65mm, respectively, the distance from the first boss 12 to the fourth boss 15 is 95mm, and the distance from the second boss 13 and the third boss 14 to the bottom of the groove is 46 mm.
The first boss 12 is disposed on the second boss 13 far from the first housing 11, and the voltage sampling port 301 of the voltage sampling module and the control port of the control unit are disposed on the first boss 12. The voltage sampling port 301 is connected with a voltage transformer, and the control port is a relay output terminal connected with a corresponding circuit.
In this embodiment, the fourth boss 15 is disposed on the third boss 14 on the side away from the first housing 11, and the residual current sampling port of the residual current sampling module and the temperature sampling port of the temperature sampling module are disposed on the third boss 14. The current sampling port of the current sampling module, the input port of the switching value input module and the communication port of the communication unit are arranged on one side, far away from the third boss 14, of the fourth boss 15. The residual sampling port of the residual current sampling module is connected with the residual current transformer 302, and the temperature sampling port of the temperature sampling module is connected with the corresponding temperature probe.
In a specific embodiment, the temperature sampling module is a temperature sampling circuit, and the number of the temperature sampling circuit is 4.
In this embodiment, an indicator light, a key and an infrared communication port of the communication unit are disposed on a side of the first housing 11 opposite to the groove, and the antenna 21 of the communication unit is disposed on a side of the first housing 11 where the second boss 13 is disposed. The working state of the safe energy efficiency acquisition terminal can be acquired and the safe energy efficiency acquisition terminal can be turned on or turned off through the indicator lamp and the key.
In this embodiment, the current sampling port of the current sampling module, the switching value input port of the switching value input module, and the communication port of the communication unit are disposed on the side of the fourth boss 15 away from the third boss 14. In other embodiments, the current sampling port, the input port of the switching value input module, and the communication port of the communication unit may be disposed at other positions of the fourth boss 15 or disposed on the third boss 14 and the first housing 11, which is not limited herein.
In this embodiment, a voltage sampling port and a current sampling port of the safety energy efficiency acquisition terminal are connected to the same device, and voltage and current information of the detected object is acquired through the device, and may also be connected to the voltage transformer and the current transformer 303 respectively to acquire the voltage and current information.
In a specific embodiment, as shown in fig. 12, the voltage sampling ports 301 of the voltage sampling modules are V1, V2, V3 and VN, the control ports are D011-D022, the residual current sampling ports of the residual current sampling modules are 1 and 2, the temperature sampling ports are 3-10, the current sampling ports are I11, I12, I21, I22, I31 and I32, the switching value input ports of the switching value input modules are DIC, DI1 and DI2, and the communication ports of the communication unit are D +, D-.
The safe energy efficiency acquisition terminal can acquire real-time data such as voltage, current, electric energy, power parameters and the like of a power grid, and has high requirements on the measurement precision. The processor of the embodiment adopts an industrial-grade high-precision three-phase electric energy metering chip, and can well meet the requirement of high metering precision.
The processor of the acquisition terminal of the safe energy efficiency acquisition terminal takes an industrial microprocessor as a core, has high processing speed and can provide high-precision measurement data of basic electric energy parameters such as three-phase voltage, three-phase current, power and the like.
The intelligent safe energy efficiency acquisition terminal KOTBOX not only can provide high-precision measurement data of basic electric energy parameters such as three-phase voltage, three-phase current and power, but also has the functions of time-sharing charging, demand calculation, harmonic calculation, fixed value out-of-limit, data freezing and timing recording, and also has the functions of wireless remote control, residual current monitoring, environment/equipment temperature monitoring and the like. The functions realized by the safe energy efficiency acquisition terminal are shown in a table I:
TABLE 1 secure acquisition energy efficiency terminal function table
The safe energy efficiency acquisition terminal of the embodiment has multiple communication modes, can flexibly configure the communication modes according to different communication conditions of users, and meets wide requirements of the users.
In addition, according to the embodiment, the safety energy efficiency acquisition terminal can be remotely connected with the mobile terminal, the monitoring background and other control devices through the communication terminal, and receives the remote control instruction sent by the control device to execute the corresponding operation.
The control device can remotely inquire and set the control mode, the switching value setting, the pulse calculation coefficient and the remote control pulse time of the input port of the safe energy efficiency acquisition terminal, and the compensation value of the temperature port resistor of the acquisition terminal and the like. The upper computer of the safe energy efficiency acquisition terminal can operate a relay switch in a control unit of the safe energy efficiency acquisition terminal to close and open the relay switch.
The power supply of the safety energy efficiency acquisition terminal can be directly connected to a star system of 3X 100V and 220/380 VAC. If the voltage of the monitored system is higher than 220/380V, the power supply needs to be connected with the monitored system using a voltage transformer.
In a specific embodiment, the current collection port of the current collection module is a card slot, and is connected with the special current transformer 3035A/100A/200A/400A/800A independent open-close type CT, the CT terminal of the independent open-close type CT is inserted into the card slot, the CT is opened and then is clamped on the cable to be tested, and the current enters the safe energy efficiency collection terminal.
The safety energy efficiency acquisition terminal of the embodiment can be used for enterprise-workshop-equipment (process and production line) one-level, two-level and three-level energy consumption measurement assessment and energy consumption statistics; energy consumption comparison analysis is carried out on the same equipment (working procedure and production line) at different periods and on the same equipment at different periods; monitoring the energy consumption condition of equipment (working procedure and production line) in real time, and analyzing the trend curve of the electrical load of the equipment; energy balance analysis and energy consumption standard exceeding early warning; analyzing the operation efficiency of the equipment; selecting and analyzing energy-saving equipment and evaluating energy-saving effect; and the energy consumption and the equipment production state realize visual management.
It can also be applied to electricity (fire) safety: residual current monitoring and early warning (electric leakage, electric fire) and temperature monitoring and early warning; the high-low voltage circuit breaker and the production and manufacturing equipment are controlled to switch on and off remotely; equipment life cycle management and historical information tracing.
The system can also be used for carrying out data acquisition, analysis, safety early warning and energy efficiency optimization solution on various production equipment and objects such as mechanical equipment, production workshops, office buildings, production lines and the like, such as a central air conditioner, a fan water pump, an air compressor, a boiler, illumination, an injection molding machine, a punching machine, a printing machine, a heat pump and the like.
The communication concentrator is connected with one of the safety energy efficiency acquisition terminals through an RS-485 line to collect information of the safety energy efficiency acquisition terminals and send the information to the server through the Ethernet.
In this embodiment, the security energy efficiency acquisition terminals may be further connected to the server or other devices for controlling and storing information through GPRS/NB-IOT/LORA in a wireless communication manner, or one of the security energy efficiency acquisition terminals or the information concentrator may be used as a higher-level terminal and connected to the server through the higher-level terminal or the information concentrator.
Real-time data collection and monitoring such as standby running state, electric current, voltage, electric quantity can be realized through communication of safe efficiency acquisition terminal and server, mobile terminal and other controlling means, and real-time long-range automatic meter reading reduces personnel's work load, and intelligent unmanned on-duty that tours: the method comprises the steps of pushing events in real time, inquiring historical events, classifying events, giving an alarm by short messages when faults occur, automatically pushing images, popping images, reminding pop videos, managing equipment files and spare parts, analyzing equipment operation trends according to information such as loads, currents and contact temperatures, analyzing motors according to information such as efficiency, safe operation time and maintenance time of the motors, analyzing faults, predicting trends, performing out-of-limit statistics, predicting loads of circuits, transformers and monitoring points, analyzing energy consumption of important equipment, circuits and energy consumption units, and predicting data loads of the Internet.
Compared with the prior art, the utility model discloses safe efficiency acquisition terminal's beneficial effect lies in: set up multiple electric power parameter acquisition module in the collection unit, can gather electric power system's multiple electric energy parameter comprehensively to can provide reference and supplementary for carrying out electric power fine management, fire control safety control, equipment temperature, ambient temperature for the power consumption enterprise, reduce manpower, material resources, financial resources loss.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. A safe energy efficiency acquisition terminal is characterized by comprising a shell, an acquisition unit, a processor, a control unit and a communication unit, wherein the acquisition unit, the processor, the control unit and the communication unit are arranged in the shell;
the acquisition unit comprises a current sampling module, a voltage sampling module, a switching value input module, a residual current sampling module, a temperature sampling module, a pulse input module and an analog value input module, and acquires current, voltage, switching value, residual current, temperature, pulse and analog value signals respectively through the current sampling module, the voltage sampling module, the switching value input module, the residual current sampling module, the temperature sampling module, the pulse input module and the analog value input module and sends the signals to the processor;
the processor receives the signal, acquires and records an electric energy parameter according to the signal, sends the electric energy parameter to a specified object through the communication unit, receives an instruction through the communication unit, changes the working state of the acquisition unit according to the instruction and controls the on and off of a circuit through the control unit.
2. The terminal of claim 1, wherein the communication unit comprises at least one of an RS485 component, an NB-IOT component, a GPRS component, and a LORA component.
3. The safety energy efficiency acquisition terminal according to claim 1, further comprising a power supply, wherein the power supply is respectively connected with the processor, the acquisition unit, the control unit and the communication unit to supply power to the processor, the acquisition unit, the control unit and the communication unit.
4. The safety energy efficiency acquisition terminal according to claim 1, wherein the control unit comprises at least one relay switch, and the closing and opening of the circuit are controlled through the relay switch.
5. The terminal according to claim 1, wherein the housing includes a first housing, opposite sides of the first housing extend in a direction away from the first housing to form a stepped structure, the stepped structure includes a first boss, a second boss, a third boss, and a fourth boss, the first boss and the second boss are stacked on one side of the first housing, and the third boss and the fourth boss are stacked on the other side of the first housing.
6. The terminal according to claim 5, wherein a groove is formed in one side of the first housing, the groove is parallel to the second boss, a side of the groove, which is close to the second boss, extends into a side wall of the groove, and the terminal is fixed on the guide rail through the groove.
7. The terminal according to claim 6, wherein an indicator light, a key and an infrared communication port of a communication unit are disposed on a side of the first casing opposite to the groove, and an antenna of the communication unit is disposed on a side of the first casing opposite to the second boss.
8. The terminal according to claim 5, wherein the first boss is disposed on a side of the second boss away from the first housing, and the voltage sampling port of the voltage sampling module and the control port of the control unit are disposed on the first boss.
9. The terminal according to claim 5, wherein the fourth boss is disposed on a side of the third boss away from the first housing, and the residual current sampling port of the residual current sampling module and the temperature sampling port of the temperature sampling module are disposed on the third boss.
10. The terminal according to claim 9, wherein the current sampling port of the current sampling module, the switching value input port of the switching value input module, and the communication port of the communication unit are disposed on a side of the fourth boss away from the third boss.
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| CN112150783A (en) * | 2020-08-10 | 2020-12-29 | 上海有间建筑科技有限公司 | Smart factory cloud meter reading system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112150783A (en) * | 2020-08-10 | 2020-12-29 | 上海有间建筑科技有限公司 | Smart factory cloud meter reading system |
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