CN210166439U - Split type air conditioner controller electric energy meter - Google Patents
Split type air conditioner controller electric energy meter Download PDFInfo
- Publication number
- CN210166439U CN210166439U CN201920934665.8U CN201920934665U CN210166439U CN 210166439 U CN210166439 U CN 210166439U CN 201920934665 U CN201920934665 U CN 201920934665U CN 210166439 U CN210166439 U CN 210166439U
- Authority
- CN
- China
- Prior art keywords
- chip microcomputer
- single chip
- electric energy
- singlechip
- communication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004891 communication Methods 0.000 claims abstract description 57
- 238000005259 measurement Methods 0.000 claims abstract description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 11
- 229910052744 lithium Inorganic materials 0.000 claims description 11
- 238000005070 sampling Methods 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000004378 air conditioning Methods 0.000 abstract description 17
- 238000009434 installation Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 6
- 230000003993 interaction Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000011217 control strategy Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses a split type air conditioner controller electric energy meter, which comprises a singlechip, a metering chip, an active and reactive pulse output unit, an electric energy pulse output unit, an LCD display screen and 485 communication, infrared communication, GPRS module communication, alarm instruction, relay control unit, EEPROM and clock unit, the singlechip is connected with relay control unit, the measurement chip is installed on the singlechip, the singlechip is connected active idle pulse output and electric energy pulse output unit, install the LCD display screen on the singlechip, connect 485 communications on the singlechip, connect infrared communication on the singlechip, connect GPRS module communication on the singlechip, alarm instruction installs in the singlechip, the inboard installation EEPROM of singlechip, the singlechip outside is equipped with clock unit, the utility model discloses split type air conditioner controller electric energy meter fully realizes the teletransmission and the control of user to air conditioning equipment power consumption information, realizes that the user is to air conditioning equipment remote control.
Description
Technical Field
The utility model relates to an instrument and meter technical field specifically is a split type air conditioner controller electric energy meter.
Background
The three-phase electronic electric energy meter has the advantages of high accuracy, low power consumption, small starting current, wide load range, no mechanical abrasion and the like, and is more and more widely applied. The electric energy meter obtains a voltage sampling signal by a divider resistor, obtains a current sampling signal by a current transformer, obtains a voltage-current product signal by a multiplier, generates an electric energy metering pulse with frequency in direct proportion to the voltage-current product by frequency conversion, and transmits the generated electric energy pulse signal to a CPU (central processing unit) for processing by a photoelectric coupler. However, the existing three-phase electronic electric energy meter can only measure three-phase electric energy and cannot realize intelligent control on air conditioning equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a split type air conditioner controller electric energy meter, split type air conditioner controller electric energy meter not only possess multi-functional electric energy meter function, can also real-time supervision and control the running state of air conditioner, the energy consumption situation of record air conditioner to report the running data of every air conditioner for the split type air conditioning system, realize centralized management. Meanwhile, the split air-conditioning system can realize remote infrared control, the air conditioner can be remotely turned off when the conditions of 'unmanned air conditioning' and the like occur in a room, the burden of managers is not increased while energy is saved, the electric energy meter of the air-conditioning controller is combined with a metering module, an environmental parameter acquisition interface, a communication module, a relay control and the like to realize the acquisition of information such as temperature, humidity, electric quantity, power and the like, and a series of automatic processing flows such as strategy storage, switch control, networking communication and the like are realized. The air conditioner controller electric energy meter realizes the control of an air conditioner power supply loop by controlling the on-off of the relay, the air conditioner controller electric energy meter can realize the interaction with remote application platform software, the application platform software can issue various control strategies to the controller, and the controller supports control modes such as strategy control, instant control, local temperature and humidity control and the like, so that the problems in the prior art can be solved.
In order to achieve the above object, the utility model provides a following technical scheme:
a split type air conditioner controller electric energy meter comprises a single chip microcomputer, a metering chip, a three-phase voltage sampling, a three-phase current sampling, a stabilized voltage power supply & lithium battery, a power supply unit, an active and reactive pulse output unit, an electric energy pulse output unit, an LCD display screen, a 485 communication unit, an infrared communication unit, a GPRS module communication unit, an alarm indication unit, an upturning and downturning key, a relay control unit, an EEPROM and a clock unit, wherein the single chip microcomputer is connected with the relay control unit, the metering chip is connected with the three-phase voltage sampling and the three-phase current sampling, the metering chip is installed on the single chip microcomputer, the power supply unit is connected with the stabilized voltage power supply & lithium battery and the single chip microcomputer, the single chip microcomputer is connected with the active and reactive pulse output unit and the electric energy pulse output unit, the, the single-chip microcomputer is connected with a GPRS module for communication, the alarm indication is installed on the single-chip microcomputer, an upturning key and a downturning key are arranged on the outer side of the single-chip microcomputer, an EEPROM is installed on the inner side of the single-chip microcomputer, and a clock unit is arranged on the outer side of the single-chip microcomputer.
Preferably, the clock unit is a clock circuit with a temperature compensation function, the output frequency is 1Hz, and the clock precision is less than or equal to 0.5 s/d.
Preferably, the power supply unit is a lithium battery regulated power supply.
Preferably, the 485 communication uses a 645 protocol.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. remote meter reading and control of air conditioning equipment can be realized;
2. the control relay and the air conditioning equipment adopt an AES128 data encryption mode, so that the data security is guaranteed;
3. the LCD display screen can display data such as electric quantity, voltage, current, active power, reactive power, temperature, humidity and the like, and meanwhile, meter reading control can be realized through communication between the 485 communication unit and the GPRS module;
4. the intelligent air conditioner can realize a large number of fault alarms and under-voltage battery alarms, is convenient to manage, increases the reliability of the operation of the electric meter, fully realizes the remote transmission and monitoring of electric information for the air conditioner equipment by a user and the remote control of the user on the air conditioner equipment by controlling the air conditioner to use reasonably according to a control strategy, and can effectively save energy.
The utility model discloses split type air conditioner controller electric energy meter adopts advanced electric energy meter application specific integrated circuit, high new energy MCU, multinomial technologies such as the hard clock of built-in temperature compensation, an exchange active electric energy for rated frequency is in the 50Hz three-phase electric wire netting, the idle electric energy timesharing measurement, the electric power parameter measurement, remote information gathers, infrared mode control air conditioner operation, built-in wireless communication module, fully realize the teletransmission and the control of user to air conditioning equipment power consumption information, realize the user to air conditioning equipment remote control, mainly be applied to school, the mill, intelligent building, market etc.
Drawings
Fig. 1 is a block diagram of a first embodiment of the present invention;
fig. 2 is a block diagram of a second embodiment of the present invention;
fig. 3 is a block diagram of a third embodiment of the present invention;
fig. 4 is a block diagram of a fourth embodiment of the present invention.
In the figure: 1. a single chip microcomputer; 2. a metering chip; 3. sampling three-phase voltage; 4. sampling three-phase current; 51. Regulated power supply & lithium battery; 52. a power supply unit; 61. outputting active and reactive pulses; 62. an electric energy pulse output unit; 7. an LCD display screen; 8. 485 communication; 9. infrared communication; 10. GPRS module communication; 11. an alarm indication; 12. an up-turning and down-turning key; 13. a relay control unit; 14. an EEPROM; 15. A clock unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely 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.
The first embodiment is as follows:
referring to fig. 1, a split type air conditioner controller electric energy meter comprises a single chip microcomputer 1, a metering chip 2, a three-phase voltage sample 3, a three-phase current sample 4, a regulated power supply & lithium battery 51, an active and reactive pulse output 61, an LCD display screen 7, 485 communication 8, infrared communication 9, a GPRS module communication 10, an alarm indication 11, an upturning and downturning key 12, a relay control unit 13 and an EEPROM14, wherein the single chip microcomputer 1 is connected with the relay control unit 13, the metering chip 2 is connected with the three-phase voltage sample 3 and the three-phase current sample 4, the metering chip 2 is mounted on the single chip microcomputer 1, data is transmitted to the metering chip 2 after the three-phase voltage sample 3 and the three-phase current sample 4 are sampled at high precision, the metering chip 2 is processed and checked by the single chip microcomputer 1 after operation is finished, the regulated power supply & lithium battery 51 is connected with, the single chip microcomputer 1 is provided with an LCD display screen 7, the LCD display screen 7 displays the 'switching-off' character, the relay control unit 13 drives the relay to switch off, when a remote switching-on instruction is received, the LCD display screen 7 displays that the switching-off character disappears at the moment, the relay control unit 13 drives the relay to switch on, the single chip microcomputer 1 is connected with a 485 communication 8, the 485 communication 8 adopts a 645 protocol, the remote transmission and monitoring of household electrical information can be fully realized, the single chip microcomputer 1 is connected with the infrared communication 9 to realize the control function of an air conditioner, the single chip microcomputer 1 is connected with the GPRS module communication 10 to realize remote data interaction, the alarm indication 11 is installed on the single chip microcomputer 1 to realize a large amount of fault alarm and battery under-voltage alarm, the outer side of the single chip microcomputer 1 is provided with an upturning and downturning key 12, the inner side of the single chip microcomputer 1 is provided with the EEPROM14 to realize the storage of user data and prevent the electric energy data from disappearing after accidental power failure.
Example two:
referring to fig. 2, a split type air conditioner controller electric energy meter comprises a single chip microcomputer 1, a metering chip 2, a three-phase voltage sample 3, a three-phase current sample 4, a regulated power supply & lithium battery 51, an active and reactive pulse output 61, an LCD display screen 7, 485 communication 8, infrared communication 9, a GPRS module communication 10, an alarm indication 11, an upturning and downturning key 12, a relay control unit 13, an EEPROM14 and a clock unit 15, wherein the single chip microcomputer 1 is connected with the relay control unit 13, the metering chip 2 is connected with the three-phase voltage sample 3 and the three-phase current sample 4, the metering chip 2 is mounted on the single chip microcomputer 1, after the three-phase voltage sample 3 and the three-phase current sample 4 are sampled with high precision, data is sent to the metering chip 2, the metering chip 2 is processed and checked by the single chip microcomputer 1 after completing operation, the regulated power supply & lithium battery 51 is connected, the single chip microcomputer 1 is provided with an LCD display screen 7, the LCD display screen 7 displays 'switching-off' characters, a relay control unit 13 drives a relay to switch off, when a remote switching-on instruction is received, the LCD display screen 7 displays that the 'switching-off' characters disappear, the relay control unit 13 drives the relay to switch on, the single chip microcomputer 1 is connected with a 485 communication 8, the 485 communication 8 adopts 645 protocol, the remote transmission and monitoring of household electric information can be fully realized, the single chip microcomputer 1 is connected with an infrared communication 9 to realize the control function of an air conditioner, the single chip microcomputer 1 is connected with a GPRS module communication 10 to realize remote data interaction, an alarm instruction 11 is arranged on the single chip microcomputer 1 to realize a large number of fault alarms and battery under-voltage alarms, the outer side of the single chip microcomputer 1 is provided with an upturning and downturning key 12, the inner side of the single chip microcomputer 1 is provided with an EEPROM14 to realize, the outer side of the singlechip 1 is provided with a clock unit 15, the clock unit 15 is a clock circuit with a temperature compensation function, the output frequency is 1Hz, and the clock precision is less than or equal to 0.5 s/d.
Example three:
referring to fig. 3, a split type air conditioner controller electric energy meter comprises a single chip microcomputer 1, a metering chip 2, a three-phase voltage sample 3, a three-phase current sample 4, a power supply unit 52, an active and reactive pulse output 61, an LCD display screen 7, a 485 communication 8, an infrared communication 9, a GPRS module communication 10, an alarm indication 11, an upturning and downturning key 12, a relay control unit 13, an EEPROM14 and a clock unit 15, wherein the single chip microcomputer 1 is connected with the relay control unit 13, the metering chip 2 is connected with the three-phase voltage sample 3 and the three-phase current sample 4, the metering chip 2 is mounted on the single chip microcomputer 1, data is transmitted to the metering chip 2 after the three-phase voltage sample 3 and the three-phase current sample 4 are sampled at high precision, the metering chip 2 is processed and checked by the single chip microcomputer 1 after operation is finished, the power supply unit 52 is connected, the single chip microcomputer 1 is connected with an active and reactive pulse output 61, an LCD display screen 7 is installed on the single chip microcomputer 1, the LCD display screen 7 displays 'switching-off' characters, a relay control unit 13 drives a relay to switch off, when a remote switching-on instruction is received, the LCD display screen 7 displays that the 'switching-off' characters disappear, the relay control unit 13 drives the relay to switch on, the single chip microcomputer 1 is connected with a 485 communication 8, the 485 communication 8 adopts a 645 protocol, the remote transmission and monitoring of household electrical information can be fully realized, the single chip microcomputer 1 is connected with an infrared communication 9 to realize the control function of an air conditioner, the single chip microcomputer 1 is connected with a GPRS module communication 10 to realize remote data interaction, an alarm indicator 11 is installed on the single chip microcomputer 1 to realize a large number of fault alarms and under-voltage alarms of a battery, an upturning button 12 is arranged on the outer side of the single chip microcomputer 1, an, the electric energy data are prevented from disappearing after accidental power failure, the clock unit 15 is arranged on the outer side of the single chip microcomputer 1, the clock unit 15 is a clock circuit with a temperature compensation function, the output frequency is 1Hz, and the clock precision is less than or equal to 0.5 s/d.
Example four:
referring to fig. 4, a split type air conditioner controller electric energy meter comprises a single chip microcomputer 1, a metering chip 2, a three-phase voltage sample 3, a three-phase current sample 4, a power supply unit 52, an electric energy pulse output unit 62, an LCD display screen 7, 485 communication 8, infrared communication 9, GPRS module communication 10, an alarm indication 11, an upturning and downturning key 12, a relay control unit 13, an EEPROM14 and a clock unit 15, wherein the single chip microcomputer 1 is connected with the relay control unit 13, the metering chip 2 is connected with the three-phase voltage sample 3 and the three-phase current sample 4, the metering chip 2 is mounted on the single chip microcomputer 1, after the three-phase voltage sample 3 and the three-phase current sample 4 are sampled with high precision, data is sent to the metering chip 2, the metering chip 2 is processed and checked by the single chip microcomputer 1 after operation is finished, the power supply unit 52 is connected with the single chip, the single chip microcomputer 1 is provided with an LCD display screen 7, the LCD display screen 7 displays 'switching-off' characters, a relay control unit 13 drives a relay to switch off, when a remote switching-on instruction is received, the LCD display screen 7 displays that the 'switching-off' characters disappear, the relay control unit 13 drives the relay to switch on, the single chip microcomputer 1 is connected with a 485 communication 8, the 485 communication 8 adopts 645 protocol, the remote transmission and monitoring of household electric information can be fully realized, the single chip microcomputer 1 is connected with an infrared communication 9 to realize the control function of an air conditioner, the single chip microcomputer 1 is connected with a GPRS module communication 10 to realize remote data interaction, an alarm instruction 11 is arranged on the single chip microcomputer 1 to realize a large number of fault alarms and battery under-voltage alarms, the outer side of the single chip microcomputer 1 is provided with an upturning and downturning key 12, the inner side of the single chip microcomputer 1 is provided with an EEPROM14 to realize, the outer side of the singlechip 1 is provided with a clock unit 15, the clock unit 15 is a clock circuit with a temperature compensation function, the output frequency is 1Hz, and the clock precision is less than or equal to 0.5 s/d.
In summary, the following steps: the utility model discloses split type air conditioner controller electric energy meter can realize long-range meter reading and control air conditioning equipment; the control relay and the air conditioning equipment adopt an AES128 data encryption mode, so that the data security is guaranteed; the LCD display screen 7 can display data such as electric quantity, voltage, current, active power, reactive power, temperature, humidity and the like, and meanwhile, meter reading control can be realized through the 485 communication unit 8 and the GPRS module communication 10; can realize a large amount of fault alarm and battery under-voltage alarm, be convenient for manage, has increased the reliability of ammeter operation, use through the reasonable control air conditioner of control strategy, fully realize user's teletransmission and control to air conditioning equipment power consumption information, realize user to air conditioning equipment remote control, can effective energy saving's use, the utility model discloses split type air conditioner controller electric energy meter adopts multiple technologies such as advanced electric energy meter special integrated circuit, high new energy MCU, the hard clock of built-in temperature compensation, is arranged in exchanging active electric energy, idle electric energy timesharing measurement, electric power parameter measurement, remote information acquisition, infrared mode control air conditioner operation in the three-phase electric wire netting that rated frequency is 50Hz, and built-in wireless communication module fully realizes user's teletransmission and control to air conditioning equipment power consumption information, realizes user to air conditioning equipment remote control, mainly is applied to school's long-distance transmission and control, Factories, intelligent buildings, shopping malls, etc.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a split type air conditioner controller electric energy meter, including singlechip (1), measurement chip (2), three-phase voltage sampling (3), three-phase current sampling (4), constant voltage power supply & lithium cell (51), electrical unit (52), active and reactive pulse output (61), electric energy pulse output unit (62), LCD display screen (7), 485 communication (8), infrared communication (9), GPRS module communication (10), alarm indication (11), upturn and turn down button (12), relay control unit (13), EEPROM (14) and clock unit (15), its characterized in that: the intelligent monitoring system is characterized in that the single chip microcomputer (1) is connected with a relay control unit (13), the metering chip (2) is connected with a three-phase voltage sample (3) and a three-phase current sample (4), the metering chip (2) is installed on the single chip microcomputer (1), the power supply unit (52) is connected with a stabilized voltage supply and lithium battery (51) and the single chip microcomputer (1), the single chip microcomputer (1) is connected with an active and reactive pulse output unit (61) and an electric energy pulse output unit (62), an LCD display screen (7) is installed on the single chip microcomputer (1), a 485 communication (8) is connected on the single chip microcomputer (1), an infrared communication (9) is connected on the single chip microcomputer (1), a GPRS module communication (10) is connected on the single chip microcomputer (1), an alarm indicator (11) is installed on the single chip microcomputer (1), and an upturning and downturning key, EEPROM (14) is installed on the inner side of the single chip microcomputer (1), and a clock unit (15) is arranged on the outer side of the single chip microcomputer (1).
2. The split air conditioner controller electric energy meter according to claim 1, wherein: the clock unit (15) is a clock circuit with a temperature compensation function, the output frequency is 1Hz, and the clock precision is less than or equal to 0.5 s/d.
3. The split air conditioner controller electric energy meter according to claim 1, wherein: the power supply unit (52) is a lithium battery regulated power supply.
4. The split air conditioner controller electric energy meter according to claim 1, wherein: the 485 communication (8) adopts a 645 protocol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920934665.8U CN210166439U (en) | 2019-06-20 | 2019-06-20 | Split type air conditioner controller electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920934665.8U CN210166439U (en) | 2019-06-20 | 2019-06-20 | Split type air conditioner controller electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210166439U true CN210166439U (en) | 2020-03-20 |
Family
ID=70171725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920934665.8U Expired - Fee Related CN210166439U (en) | 2019-06-20 | 2019-06-20 | Split type air conditioner controller electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210166439U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490816A (en) * | 2018-10-16 | 2019-03-19 | 广西电网有限责任公司电力科学研究院 | A kind of split type metering automation terminal fault detection device and its detection method |
| CN111756398A (en) * | 2020-06-04 | 2020-10-09 | 苏州大学文正学院 | Utilize in experimental facilities intelligent monitoring system's communication circuit |
| CN112325462A (en) * | 2020-10-11 | 2021-02-05 | 浙江晨泰科技股份有限公司 | Intelligent air conditioner metering module |
-
2019
- 2019-06-20 CN CN201920934665.8U patent/CN210166439U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490816A (en) * | 2018-10-16 | 2019-03-19 | 广西电网有限责任公司电力科学研究院 | A kind of split type metering automation terminal fault detection device and its detection method |
| CN111756398A (en) * | 2020-06-04 | 2020-10-09 | 苏州大学文正学院 | Utilize in experimental facilities intelligent monitoring system's communication circuit |
| CN112325462A (en) * | 2020-10-11 | 2021-02-05 | 浙江晨泰科技股份有限公司 | Intelligent air conditioner metering module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210166439U (en) | Split type air conditioner controller electric energy meter | |
| CN101969230B (en) | Power supply loop monitoring device and system | |
| CN105634138A (en) | Multifunctional three-phase electric power monitoring apparatus | |
| CN103364685A (en) | Current temperature on-line fault indicator and method for judging fault | |
| CN201576047U (en) | Statistical voltage monitoring instrument | |
| CN108415338A (en) | A kind of students' dormitory safety monitoring system and method | |
| CN104993576A (en) | Double power supply automatic change-over switch controller and method | |
| CN114778914B (en) | Smart electric meter acquisition system | |
| CN101237156A (en) | Realization method for wall-hang energy-saving high-frequency switch DC power system | |
| CN209911433U (en) | Electric energy meter with automatic temperature control and intelligent load identification functions | |
| CN111735999A (en) | Internet of things ammeter based on NB-IoT communication technology | |
| WO2013056606A1 (en) | Energy efficiency data concentration terminal | |
| CN203416050U (en) | Transformer room low-voltage power supply remote real-time monitoring apparatus | |
| CN2798103Y (en) | Network intelligent electric energy quantity monitor | |
| CN110763945A (en) | Fill electric pile test equipment | |
| CN216160816U (en) | Multi-loop power consumption detection monitoring control terminal | |
| CN205506968U (en) | Three -phase power measure and control instrument | |
| CN210051387U (en) | NB-IoT gas meter with temperature detection function | |
| CN209948788U (en) | Distributed power grid friendly flexible load monitoring device | |
| CN209895153U (en) | Intelligent motor-pumped well control device | |
| Lu et al. | Substation equipment temperature monitoring system design based on self-powered wireless temperature sensors | |
| CN210894499U (en) | Intelligent metering terminal with large-screen display function | |
| CN114113779A (en) | Visual household electric energy information monitoring system | |
| CN106970277A (en) | A kind of power monitoring system detected with temperature and electrical fire | |
| CN201985621U (en) | Power supply circuit monitoring device and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200320 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |