CN111459072A - Intelligent edge terminal of distribution box based on industrial Internet of things - Google Patents
Intelligent edge terminal of distribution box based on industrial Internet of things Download PDFInfo
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- CN111459072A CN111459072A CN202010301082.9A CN202010301082A CN111459072A CN 111459072 A CN111459072 A CN 111459072A CN 202010301082 A CN202010301082 A CN 202010301082A CN 111459072 A CN111459072 A CN 111459072A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses an intelligent edge terminal of a distribution box based on an industrial Internet of things, which comprises a CPU module, an analog quantity input module, a digital signal input module, a relay output module, a power module and a communication module, wherein the analog quantity input module, the digital signal input module, the relay output module, the power module and the communication module are connected to the CPU module, the analog quantity input module is connected with a current sampler and a temperature sensor, the current sampler collects the current of a system power supply of the distribution box, the temperature sensor detects the temperature of a power supply cable output by the distribution box and the environmental temperature of the distribution box, the relay output module is connected to a control circuit breaker and a control lock of the distribution box, and the CPU module exchanges data with a remote monitoring system through the communication module.
Description
Technical Field
The invention relates to intelligent terminal equipment, in particular to an intelligent edge terminal of a distribution box based on an industrial Internet of things.
Background
The construction site can not use electricity, and engineering equipment, construction machines, site illumination, electrical installation and the like all need to be supported by electric energy. Along with the enhancement of the technological content and the intellectualization of construction engineering projects, the construction mechanization and the automation degree are continuously improved, and the power utilization places are wider. However, the electric energy brings convenience to human beings, and simultaneously has strong destructive power. The construction site is easy to cause electric shock casualty accidents due to the characteristics of multiple types of electric equipment, large electric capacity, unfixed working environment, open-air operation and temporary use. Meanwhile, the power utilization management of a construction site is generally disordered, the configuration parameters of the distribution box do not reach the standard, the three-level power utilization management supervision is not in place, and the phenomenon that the illegal power utilization is carried out by the site in a private pull and disorderly connection mode is serious. To these phenomena, intelligent distribution box has appeared, realized that intelligence is unblanked, long-range unblanked and long-range outage to and obtain the power supply state and the lock state information of block terminal in real time, carry out real-time supervision to the block terminal and played certain effect. Adopt intelligent power distribution box still to have following not enough: 1. the power consumption of the distribution box cannot be collected, and the distribution box has the risk of overload work; 2. the load power supply cable of the distribution box is not monitored, and when the load is overlarge, the temperature of the cable is overhigh, so that potential safety hazards exist; 3. the wireless communication distance of the intelligent distribution box is short, and the requirement of long-distance data transmission cannot be met; 4. need reform transform former distribution box into intelligent power distribution box, complex operation, work load is big, and is with high costs.
Disclosure of Invention
The invention aims to provide an intelligent edge terminal of a distribution box based on an industrial Internet of things, which is used for realizing the collection of the load and the state of the distribution box and the remote control of the distribution box without modifying the distribution box.
The invention provides an intelligent edge terminal of a distribution box based on an industrial Internet of things, which comprises a CPU module, an analog quantity input module, a digital signal input module, a relay output module, a power supply module and a communication module, wherein the analog quantity input module, the digital signal input module, the relay output module, the power supply module and the communication module are connected to the CPU module, the analog quantity input module is connected with a current sampler and a temperature sensor, the current sampler is used for collecting the current of a system power supply of the distribution box, the temperature sensor is used for detecting the temperature of a power supply cable output by the distribution box and the environment temperature of the distribution box, the relay output module is connected to a control circuit breaker and a control lock of the distribution box to control the on-off of the circuit breaker and the on-off of the control lock of the distribution box, the communication module.
Furthermore, an AD conversion module is connected between the analog input module and the CPU module, and converts an analog signal input by the analog input module into a digital signal and inputs the digital signal to the CPU module.
Furthermore, the current sampler is current transformer, the current signal that current transformer gathered is connected to the AD sampling chip of AD conversion module through analog input module's sampling resistance conditioning circuit and filter circuit, the AD sampling chip is single-phase electric energy measurement chip ATT7053BU, the AD sampling chip passes through the SPI interface and is connected with the CPU module.
Furthermore, the temperature signal that temperature sensor gathered is connected to the inside AD conversion unit of CPU module through analog input module's sampling resistance conditioning circuit and filter circuit, the inside AD conversion unit of CPU module is equipped with AD unit power input port, power module provides AD sampling reference voltage for the AD unit power input port of CPU module.
Further, the power module comprises an AC-DC power converter, a buck converter and a low dropout regulator; the AC-DC power converter converts an input 220V alternating current power supply into a 12V direct current power supply to carry out 12V direct current power supply, and simultaneously inputs the obtained 12V direct current power supply into the buck converter; the step-down converter converts a 12V direct current source into a stable 5V direct current power supply for 5V direct current power supply, and simultaneously inputs the obtained 5V power supply into the low dropout regulator; the low-dropout voltage stabilizer converts a 5V direct-current power supply into a stable 3.3V direct-current power supply to supply 3.3V direct-current power, and simultaneously inputs the obtained 3.3V direct-current power supply into an AD unit power input port of the CPU module to provide AD sampling reference voltage.
Furthermore, a voltage-reducing converter of the power module adopts a tps54231 voltage-reducing conversion chip, a resistor R5 is connected in series with a capacitor C5 and then connected in parallel with the capacitor C5, the positive electrode of the capacitor C5 is connected to a COMP pin of the voltage-reducing conversion chip, the negative electrode of the capacitor C5 is grounded, circuit compensation is performed by combining a current mode of slope compensation inside the voltage-reducing conversion chip, a voltage-dividing resistor R5 and the R5 are connected in series, the negative electrode of the resistor R5 is grounded, the positive electrode of the resistor R5 is connected to a VSNS pin of the voltage-reducing conversion chip, the feedback voltage of the VSNS pin is 0.8V, the resistance values of the voltage-dividing resistor R5 and the R5 are selected, the positive electrode output voltage of the resistor R5 is 5V, the positive electrode of the capacitor C5 is connected to an SS end of the voltage-reducing conversion chip and grounded, the negative electrode of the VSNS pin is grounded, the power supply slow delay starting is realized, surge current is limited, the capacitor C5 is used as a bootstrap capacitor C5 as a bootstrap capacitor to be connected between the BOOT pin and the PH pin of the voltage-reducing conversion chip after the capacitor C5 are connected in parallel, the positive electrode of the voltage-reducing conversion chip is connected to a positive electrode of the voltage-reducing conversion chip 5, the positive electrode of the voltage-reducing conversion chip, the voltage-reducing conversion chip is connected with the positive electrode of the voltage-reducing conversion chip, the capacitor C5, the positive electrode of the capacitor C5, the capacitor C5 and the.
Furthermore, the communication module also comprises a Bluetooth module, a 4G/5G wireless module and an RS-485 communication module.
Furthermore, the digital signal input module is connected with a control lock state monitoring sensor and a distribution box door state monitoring sensor.
Furthermore, the CPU module sends the acquired distribution box state information to a remote monitoring system through the communication module, the distribution box state information comprises the current of a system power supply of the distribution box, the temperature of a power supply cable output by the distribution box, a control lock state and a distribution box door state, the remote monitoring system sends a command for controlling the circuit breaker and the control lock to the CPU module, and the CPU module controls the on-off of the circuit breaker and the opening and closing of the control lock through the relay output module.
Compared with the prior art, the intelligent edge terminal of the distribution box based on the industrial Internet of things has the advantages that the collection of the load of the distribution box is realized through the current sampler, the ambient temperature of a load cable and the distribution box is collected through the temperature sensor, the collection precision is guaranteed through the high-precision AD conversion unit, the collected data are accurate and reliable, a data base is provided for power utilization safety analysis, the L ora module with the wireless communication of the Internet of things is matched with the 4G/5G wireless module, the remote wireless communication can be realized even in places which the 4G/5G network cannot cover, the reliability is high, the power module provides various stable output power sources, and the application range is wide.
Drawings
Fig. 1 is a block terminal intelligent edge terminal architecture diagram based on an industrial internet of things in the embodiment of the invention;
FIG. 2 is a schematic diagram of data acquisition of a current transformer in an embodiment of the invention;
FIG. 3 is a schematic diagram of data acquisition by a temperature sensor in an embodiment of the present invention;
FIG. 4 is a diagram of a power module architecture in an embodiment of the present invention;
fig. 5 is a voltage down conversion circuit diagram of the power module according to the embodiment of the invention.
Wherein:
1. the device comprises a CPU module, 2 and AD conversion modules, 3 and analog input modules, 4 and digital signal input modules, 5 and relay output modules, 6 and RS-485 communication modules, 7 and 4G/5G wireless modules, 8 and L ora modules, 9 and Bluetooth modules, 10 and a power supply module, 11 and a current transformer, 12 and a temperature sensor.
Detailed Description
The invention is further described below with reference to the figures and examples.
Fig. 1 is a block terminal intelligent edge terminal architecture diagram based on an industrial internet of things in the embodiment of the invention.
Referring to fig. 1, the intelligent edge terminal of the distribution box based on the industrial internet of things comprises a CPU module 1, and an analog input module 3, a digital signal input module 4, a relay output module 5, a power module 10 and a communication module which are connected to the CPU module 1, wherein the analog input module 3 is connected to a current sampler and a temperature sensor 12, the current sampler collects current of a system power supply of the distribution box, the temperature sensor 12 detects temperature of a power supply cable output by the distribution box and ambient temperature of the distribution box, the relay output module 5 is connected to a control circuit breaker and a control lock of the distribution box to control on/off of the control circuit breaker of the distribution box and open/close of the control lock, the communication module comprises an L ora module 8, and the CPU module 1 exchanges data with a remote monitoring system through the communication module.
Specifically, an AD conversion module 2 is connected between the analog input module 3 and the CPU module 1, and the AD conversion module 2 converts an analog signal input by the analog input module 3 into a digital signal and inputs the digital signal to the CPU module 1.
Referring to fig. 2, in the intelligent edge terminal of the distribution box based on the industrial internet of things according to the embodiment of the present invention, the current sampler is a current transformer 11, a current signal collected by the current transformer 11 is connected to an AD sampling chip of the AD conversion module 2 through a sampling resistance conditioning circuit and a filter circuit of the analog input module 3, the AD sampling chip is a single-phase electric energy metering chip ATT7053BU, and the AD sampling chip is connected to the CPU module through an SPI interface. The AD sampling adopts an ATT7053B chip supporting an SPI interface; the input signal conditioning circuit is simplified, and the sampling precision is improved.
The ATT7053B chip is a single-phase electric energy metering chip with high precision, low power consumption and SPI/UART interface, and the working voltage is 4.5V-5.5V. 3-path 22-bit sigma-delta ADC is adopted, the sampling rate can reach 31.2KHz, and the flexible configuration can be realized; the power measurement precision is better than 0.1% in a dynamic range of 5000:1, the power measurement device can measure effective values of line voltage and current, a user can obtain active power and reactive power of two channels at the same time, phase loss and electricity stealing prevention are supported, and the power consumption of full-speed operation is 3mA under the default condition of a register; the input channel supports independent and flexible gain configuration, so that the input channel can be externally connected with a manganin or current transformer as a current sampling device; all measurement parameters can be directly output, the peripheral MCU only needs to complete management and communication protocol programs, and all parameters are the results of direct operation of an internal hardware algorithm, so that the precision and the reliability of the parameters are fully ensured; configurable sag and peak functionality is supported.
Referring to fig. 3, in the intelligent edge terminal of the distribution box based on the industrial internet of things according to the embodiment of the present invention, a temperature signal acquired by the temperature sensor 12 is connected to an AD conversion unit inside the CPU module 1 through the sampling resistance conditioning circuit and the filter circuit of the analog input module 3, the AD conversion unit inside the CPU module 1 is provided with an AD unit power input port, and the power module 10 provides an AD sampling reference voltage to the AD unit power input port of the CPU module 1.
Referring to fig. 4, in the intelligent edge terminal of the distribution box based on the industrial internet of things according to the embodiment of the present invention, the power module 10 includes an AC-DC power converter, a buck converter and a low dropout regulator; the AC-DC power converter converts an input 220V alternating current power supply into a 12V direct current power supply to carry out 12V direct current power supply, and simultaneously inputs the obtained 12V direct current power supply into the buck converter; the step-down converter converts a 12V direct current source into a stable 5V direct current power supply for 5V direct current power supply, and simultaneously inputs the obtained 5V power supply into the low dropout regulator; the low dropout voltage regulator converts a 5V direct current power supply into a stable 3.3V direct current power supply to supply 3.3V direct current power, and simultaneously inputs the obtained 3.3V direct current power supply into an AD unit power input port of the CPU module 1 to provide AD sampling reference voltage.
Referring to fig. 5, the power module employs tps54231 chips for step-down conversion. tps54231 is a direct current asynchronous buck conversion chip, supports wide-range input voltage of 3.5V to 28V, and has adjustable output voltage of 0.8V at the lowest; the continuous output of 2A current is supported; a low rds (on) high side MOSFET is integrated. The automatic pulse skipping Eco-mode activating device has the function of automatically activating the pulse skipping Eco-mode, and can improve the efficiency during light load.
Specifically, the resistor R5 is connected in series with the capacitor C16 and then connected in parallel with the capacitor C17, the positive electrode of the capacitor C17 is connected to the COMP pin of the buck conversion chip, the negative electrode of the capacitor C17 is grounded, and circuit compensation is performed by combining a current mode of slope compensation inside the buck conversion chip; the circuit compensation can be realized by using a small number of three components C16, C17 and R5 and combining the current mode control of internal slope compensation.
Resistors R8 and R6 are connected in series, the negative electrode of the resistor R8 is grounded, the positive electrode of the resistor R8 is connected to the VSNS pin of the voltage reduction conversion chip, the feedback voltage of the VSNS pin is 0.8V, and the resistance values of the voltage division resistors R8 and R6 are selected, so that the positive electrode output voltage of the resistor R6 is 5V; the resistance value of the divider resistor R8 is 10K, the resistance value of the divider resistor R6 is 1.87K, the precision requirement is 1%, and the 5V output voltage is calculated according to the feedback voltage of 0.8V.
The positive pole of the capacitor C18 is connected to the SS end of the voltage reduction conversion chip, the negative pole of the capacitor C18 is grounded, and the C18 is 15nf, so that the slow delay starting of the power supply is realized, and the surge current is limited.
The capacitor C10 is used as a bootstrap capacitor to span between the BOOT pin and the PH pin of the buck conversion chip to realize voltage bootstrap.
After the input capacitors C4 and C15 are connected in parallel, the positive electrode is connected to the +12V input, the negative electrode is grounded to carry out filtering, and the filtered +12V input is connected to the VIN pin of the buck conversion chip; after the divider resistors R4 and R7 are connected in series, the negative electrode of R7 is grounded, the positive electrode of R4 is connected to the +12V input after filtering, and the positive electrode of R7 is connected to the EN pin of the buck conversion chip, so that enabling is realized.
The output capacitors C11, C12, C13 and C14 are connected in parallel and then connected in series with an inductor L2, and then connected in parallel with a rectifier tube D4, the anode of D4 is connected to the GND pin of the buck conversion chip, the cathode of D4 is connected to the GND pin of the buck conversion chip and is grounded, and the cathode of D4 is connected to the PH pin of the buck conversion chip, so that the anodes of the output capacitors C11, C12, C13 and C14 obtain stable +5V output, the rectifier tube D4 selects the B340A chip to have 40V reverse voltage, forward rated current 3A and forward voltage drop 0.5V, and the design requirement of maximum rated application is met.
Specifically, the digital signal input module 4 is connected with a control lock state monitoring sensor and a distribution box door state monitoring sensor. The CPU module 1 sends the acquired distribution box state information to a remote monitoring system through a communication module, the distribution box state information comprises the current of a system power supply of a distribution box, the temperature of a distribution box output power supply cable, a control lock state and a distribution box door state, the remote monitoring system sends a command for controlling a circuit breaker and a control lock to the CPU module 1, and the CPU module 1 controls the on-off of the circuit breaker and the opening and closing of the control lock through a relay output module 5.
Preferably, the communication module further comprises a Bluetooth module 9, a 4G/5G wireless module 7 and an RS-485 communication module 6, the L ora module 8 for networking wireless communication is matched with the 4G/5G wireless module 7, so that long-distance wireless communication can be realized even in places where a 4G/5G network cannot cover, the Bluetooth module 9 and the RS-485 communication module 6 realize wireless and wired communication maintained by the distribution box, and the communication mode is various and the application range is wide.
The L ora module is a long-distance Radio (L ong Range Radio) communication module based on L PWAN, supports L ORAWAN standard protocol, is mainly applied to the fields of intelligent meter reading, intelligent street lamps, intelligent agriculture, intelligent parking, intelligent security and the like, the L ora technology has the characteristics of long distance, low power consumption, multiple nodes and low cost, and is based on a L ora WAN network and can provide safe two-way communication with long data transmission distance, and the urban area is covered by the minimum network infrastructure, the L ora technology can be widely applied to various application scenes of intelligent agriculture, intelligent buildings, intelligent logistics and the like, the L ora is a wireless modulation mode, has obvious advantages in the aspect of inhibiting same frequency interference, overcomes the defects that a traditional design scheme cannot give consideration to distance, anti-interference and power consumption at the same time, and the L ora module integrates a power amplifier of +20dBm, can obtain adjustable receiving sensitivity exceeding-148 dBm, and is applied to long-distance transmission and has high reliability requirements.
In summary, the intelligent edge terminal of the distribution box based on the industrial internet of things realizes collection of the load of the distribution box through the current sampler, collects the ambient temperature of a load cable and the distribution box through the temperature sensor 12, ensures collection precision through the high-precision AD conversion unit, is accurate and reliable in collected data, provides a data base for power utilization safety analysis, is provided with the L ora module 8 for wireless communication of the internet of things and matched with the 4G/5G wireless module 7, can realize remote wireless communication even in places which a 4G/5G network cannot cover, is more reliable, and is wide in application range because the power module 10 provides various stable output power sources.
Although the present invention has been described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. An intelligent edge terminal of a distribution box based on an industrial Internet of things is characterized by comprising a CPU module, an analog quantity input module, a digital signal input module, a relay output module, a power supply module and a communication module, wherein the analog quantity input module, the digital signal input module, the relay output module, the power supply module and the communication module are connected to the CPU module, the analog quantity input module, the digital signal input module, the relay output module, the power supply module and the communication module, the analog quantity input module, the current sampler and the temperature sensor are connected to the current sampler and the temperature sensor, the temperature sensor.
2. The intelligent edge terminal of the distribution box based on the industrial internet of things as claimed in claim 1, wherein an AD conversion module is connected between the analog input module and the CPU module, and converts an analog signal input by the analog input module into a digital signal and inputs the digital signal to the CPU module.
3. The intelligent edge terminal of the distribution box based on the industrial internet of things as claimed in claim 2, wherein the current sampler is a current transformer, the current signal collected by the current transformer is connected to an AD sampling chip of the AD conversion module through a sampling resistance conditioning circuit and a filter circuit of the analog input module, the AD sampling chip is a single-phase power metering chip ATT7053BU, and the AD sampling chip is connected with the CPU module through an SPI interface.
4. The intelligent edge terminal of the distribution box based on the industrial internet of things as claimed in claim 2, wherein the temperature signal collected by the temperature sensor is connected to an AD conversion unit inside the CPU module through a sampling resistance conditioning circuit and a filter circuit of the analog input module, the AD conversion unit inside the CPU module is provided with an AD unit power input port, and the power module provides an AD sampling reference voltage for the AD unit power input port of the CPU module.
5. The industrial internet of things-based intelligent edge terminal of a distribution box of claim 1, wherein the power module comprises an AC-DC power converter, a buck converter and a low dropout regulator; the AC-DC power converter converts an input 220V alternating current power supply into a 12V direct current power supply to carry out 12V direct current power supply, and simultaneously inputs the obtained 12V direct current power supply into the buck converter; the step-down converter converts a 12V direct current source into a stable 5V direct current power supply for 5V direct current power supply, and simultaneously inputs the obtained 5V power supply into the low dropout regulator; the low-dropout voltage stabilizer converts a 5V direct-current power supply into a stable 3.3V direct-current power supply to supply 3.3V direct-current power, and simultaneously inputs the obtained 3.3V direct-current power supply into an AD unit power input port of the CPU module to provide AD sampling reference voltage.
6. The intelligent edge terminal of the distribution box based on the industrial Internet of things as claimed in claim 5, wherein a buck converter of the power module adopts a tps54231 buck conversion chip, a resistor R5 is connected in series with a capacitor C5 in parallel, the anode of the capacitor C5 is connected to a COMP pin of the buck conversion chip, the cathode of the capacitor C5 is grounded, circuit compensation is performed by combining a current mode of slope compensation inside the buck conversion chip, a voltage division resistor R5 and the R5 are connected in series, the cathode of the resistor R5 is grounded, the anode is connected to a VSNS pin of the buck conversion chip, the feedback voltage of the VSNS pin is 0.8V, resistance values of the voltage division resistor R5 and the R5 are selected, so that the output voltage of the anode of the resistor R5 is 5V, the anode of the capacitor C5 is connected to an SS end of the buck conversion chip and the cathode is grounded, slow delay starting of a power supply is realized, surge current is limited, the capacitor C5 is used as a capacitor to cross between the BOOT pin and the PH pin of the buck conversion chip, the PH chip 5 and the P5 are connected in parallel, the anode of the capacitor C5 and the C5 is connected to the anode of the buck conversion chip after the capacitor C5 is connected in parallel, the capacitor C5 is connected to the anode of the capacitor C5 +12V + N, the buck conversion chip is connected to the anode of the buck conversion chip, the buck conversion chip is connected to the filter is connected to the anode of the filter, the filter element C5 and the filter element, the filter element C5 to the filter element, the anode.
7. The intelligent edge terminal of distribution box based on industrial internet of things of claim 1, wherein the communication module further comprises a bluetooth module, a 4G/5G wireless module and an RS-485 communication module.
8. The intelligent edge terminal of distribution box based on the industrial internet of things according to claim 1, wherein the digital signal input module is connected with a control lock state monitoring sensor and a distribution box door state monitoring sensor.
9. The intelligent edge terminal of distribution box based on the industrial internet of things according to claim 8, wherein the CPU module sends the obtained distribution box state information to the remote monitoring system through the communication module, the distribution box state information comprises the current of the system power supply of the distribution box, the temperature of the output power supply cable of the distribution box, the state of the control lock and the state of the door of the distribution box, the remote monitoring system sends the command for controlling the circuit breaker and the control lock to the CPU module, and the CPU module controls the on-off of the circuit breaker and the on-off of the control lock through the relay output module.
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| CN202010301082.9A CN111459072A (en) | 2020-04-16 | 2020-04-16 | Intelligent edge terminal of distribution box based on industrial Internet of things |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113093630A (en) * | 2021-04-22 | 2021-07-09 | 河北探秘科技有限公司 | One-key power-off control system for restaurant stores |
| CN113315223A (en) * | 2021-04-28 | 2021-08-27 | 航粤智能电气股份有限公司 | Intelligent power distribution box and intelligent power distribution system |
| CN113363971A (en) * | 2021-06-10 | 2021-09-07 | 浙江迪尔逊科技有限公司 | Comprehensive information acquisition protector for Internet of things |
| CN113923126A (en) * | 2021-09-13 | 2022-01-11 | 国网浙江省电力有限公司湖州供电公司 | Four-way distribution network quality monitoring device and method thereof |
-
2020
- 2020-04-16 CN CN202010301082.9A patent/CN111459072A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113093630A (en) * | 2021-04-22 | 2021-07-09 | 河北探秘科技有限公司 | One-key power-off control system for restaurant stores |
| CN113315223A (en) * | 2021-04-28 | 2021-08-27 | 航粤智能电气股份有限公司 | Intelligent power distribution box and intelligent power distribution system |
| CN113363971A (en) * | 2021-06-10 | 2021-09-07 | 浙江迪尔逊科技有限公司 | Comprehensive information acquisition protector for Internet of things |
| CN113363971B (en) * | 2021-06-10 | 2024-05-07 | 浙江迪尔逊科技有限公司 | Comprehensive information acquisition protector for Internet of things |
| CN113923126A (en) * | 2021-09-13 | 2022-01-11 | 国网浙江省电力有限公司湖州供电公司 | Four-way distribution network quality monitoring device and method thereof |
| CN113923126B (en) * | 2021-09-13 | 2024-01-02 | 国网浙江省电力有限公司湖州供电公司 | Four-way distribution network quality monitoring device and method |
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