CN113589748A - Distributed intelligent edge Internet of things well lid monitoring system based on power Internet of things - Google Patents
Distributed intelligent edge Internet of things well lid monitoring system based on power Internet of things Download PDFInfo
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- CN113589748A CN113589748A CN202111147937.8A CN202111147937A CN113589748A CN 113589748 A CN113589748 A CN 113589748A CN 202111147937 A CN202111147937 A CN 202111147937A CN 113589748 A CN113589748 A CN 113589748A
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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
- G05B19/0428—Safety, monitoring
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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
- G05B2219/24029—Alarm if wrong device, apparatus is connected to control module
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Abstract
The invention discloses a distributed intelligent edge Internet of things well lid monitoring system based on an electric power Internet of things, which comprises an outer well lid and an inner well lid, wherein an outer well lid monitoring alarm assembly is arranged on the outer well lid, an inner well lid position detection assembly, a power supply module, an edge Internet of things receiving assembly and an environment monitoring assembly are arranged on the inner well lid, the inner well lid position detection assembly, the edge Internet of things receiving assembly and the environment monitoring assembly are all electrically connected with the power supply module, the edge Internet of things receiving assembly is in communication connection with a cable channel monitoring assembly arranged in a lower channel of the well lid, and the edge Internet of things receiving assembly is in communication connection with a control platform arranged in a remote monitoring center. According to the invention, the outer well cover monitoring and alarming component, the inner well cover position detecting component and the environment monitoring component are used for monitoring the opening of the outer well cover, the inclination of the inner well cover and the environment in the channel, and monitoring data are uniformly transmitted to the control platform, so that intelligent monitoring and early warning functions of outer well cover opening alarming, inner well cover inclination alarming, environment monitoring in the channel and the like are realized.
Description
Technical Field
The invention belongs to the technical field of novel intelligent well lids of the Internet of things, and particularly relates to a distributed intelligent edge Internet of things well lid monitoring system based on the power Internet of things.
Background
With the gradual increase of the ground entry rate of high-voltage cables and the rapid development of underground cable channel construction, the number of cable channel inspection wells is increased more and more, the layout is regionally dispersed, and the well covers are mostly positioned on road surfaces or sidewalks, so that the problems of external force damage such as electric power facility theft by lawbreakers, construction and illegal excavation are often faced, and the serious consequence of electric power transmission interruption in stolen power supply areas is caused. Daily operation management work only relies on the manual work to patrol and examine hardly in place in real time in the present stage, and well lid is opened, the displacement scheduling problem is difficult to in time discover, has produced very big threat to pedestrian's life safety, and simultaneously, current traditional well lid function singleness can't realize that cable channel state and well lid body state monitoring effectively fuse, leads to the resource can not make full use of, seriously influences the reliable steady operation of high tension cable, and this has led to the management work degree of difficulty of power supply department to be bigger and bigger.
Disclosure of Invention
The invention provides a distributed intelligent edge Internet of things well lid monitoring system based on an electric power Internet of things, and aims to solve the technical problems that the traditional well lid is single in function and effective monitoring of a well lid and a cable channel cannot be realized.
The utility model provides a distributed intelligence edge thing allies oneself with well lid monitored control system based on electric power thing networking, well lid monitored control system include outer well lid and with outer well lid assorted interior well lid, be equipped with outer well lid monitoring alarm component on the outer well lid, interior well lid is equipped with interior well lid position detection subassembly, power module, edge thing allies oneself with receiving assembly, environment monitoring subassembly, interior well lid position detection subassembly, edge thing allies oneself with receiving assembly, environment monitoring subassembly and all is connected with the power module electricity, and edge thing allies oneself with receiving assembly and the cable channel monitoring subassembly communication connection who sets up in well lid lower part passageway, edge thing allies oneself with receiving assembly and well lid position detection subassembly and all with the management and control platform communication connection who sets up at distal end surveillance center.
The outer well lid monitoring alarm assembly comprises a normally closed travel switch SQ1, the normally closed travel switch SQ1 is fixedly arranged on the side wall between the outer well lid and the inner well lid, and the top of the normally closed travel switch SQ1 is in contact with the lower surface of the outer well lid; one end of the normally closed travel switch SQ1 is connected with one end of a resistor R31, and the other end of the normally closed travel switch SQ1 is connected with one end of a resistor R35 and the base electrode of a triode Q1; the other end of the resistor R31 is connected with the positive electrode of the battery BT1 and one end of the resistor R32, and the other end of the resistor R32 is connected with the other end of the resistor R35 and the emitter of the triode Q2; the base electrode of the triode Q2 is connected with the emitter electrode of the triode Q1, and the collector electrode of the triode Q2 is connected with the collector electrode of the triode Q1, one end of the resistor R34 and the anode of the light-emitting diode D1; the other end of the resistor R34 is connected with one end of an alarm LS1, the other end of the alarm LS1 is connected with one end of a resistor R33 and one end of a normally closed switch SW1, and the other end of the normally closed switch SW1 is connected with the negative electrode of a battery BT 1; the other end of the resistor R33 is connected with the cathode of the light-emitting diode D1.
The inner well cover position detection assembly comprises an inclination angle sensor fixedly arranged on the inner well cover, the output end of the inclination angle sensor is connected with one end of a resistor R36, and the other end of a resistor R36 is connected with one end of a capacitor C15 and the base electrode of a triode Q4; an emitter of the triode Q4 is connected with one end of a resistor R38, one end of a normally-open switch K1-1 and a non-inverting input end of an operational amplifier AR7, an inverting input end of the operational amplifier AR7 is connected with one end of a resistor R37 and one end of a resistor R39, and an output end of the operational amplifier AR7 is connected with a base electrode of the triode Q3; an emitter of the triode Q3 is connected with one end of the resistor R41, and a collector of the triode Q3 is connected with one end of the relay K1 and the anode of the diode D2; the other end of the normally-open switch K1-1 is connected with one end of a resistor R40, and the other end of the resistor R40 is connected with the base electrode of a triode Q5; an emitter of the triode Q5 is connected with one end of a resistor R42, one end of a capacitor C18 and one end of a capacitor C17, a collector of the triode Q5 is connected with one end of a capacitor C16, one end of a capacitor C19, one end of an inductor L1 and the other end of the capacitor C17, the other end of the capacitor C19 is connected with a transmitter E1, and a transmitter E1 is connected with a control platform; the power supply end of the tilt angle sensor, the collector of the triode Q4, the other end of the resistor R37, the other end of the relay K1, the cathode of the diode D2, the other end of the inductor L1 and the other end of the capacitor C16 are all connected with the power supply module, the other end of the capacitor C15, the other end of the resistor R38, the other end of the resistor R39, the other end of the resistor R41, the other end of the resistor R42 and the other end of the capacitor C18 are all grounded, and the normally-open switch K1-1 is controlled by the relay K1.
The edge Internet of things receiving assembly comprises a frequency signal receiver for receiving signals output by the cable channel monitoring assembly, the frequency signal receiver is connected with the control unit, and the control unit is connected with the wireless communication transceiving module; the wireless communication transceiver module is in communication connection with the control platform.
A signal detection circuit, an amplification output circuit and a signal compensation circuit are arranged between the frequency signal receiver and the control unit, the input end of the signal detection circuit is correspondingly connected with the output port of the frequency signal receiver, the output end of the signal detection circuit is connected with the input end of the amplification output circuit, the output end of the amplification output circuit is connected with the control unit, and the amplification output circuit is connected with the signal compensation circuit; and the signal detection circuit, the amplification output circuit and the signal compensation circuit are all connected with the power supply module.
The signal detection circuit comprises an inductor L2, one end of an inductor L2 is connected with the output end of the frequency signal receiver and one end of a transient suppression diode TVS, and the other end of an inductor L2 is connected with one end of a capacitor C1, one end of a resistor R15, the anode of a thyristor SCR1, the non-inverting input end of an operational amplifier AR1 and the non-inverting input end of an operational amplifier AR 2; the other end of the resistor R15 is connected with one end of a capacitor C2, and the other end of the capacitor C2 is connected with the cathode of the thyristor SCR1 and the input end of the amplification output circuit; the control electrode of the thyristor SCR1 is connected with one end of a resistor R4, and the other end of the resistor R4 is connected with the output end of an exclusive-OR gate U1; two input ends of the exclusive-or gate U1 are respectively connected with an output end of the operational amplifier AR1 and an output end of the operational amplifier AR2, an inverting input end of the operational amplifier AR1 is connected with one end of the resistor R2 and one end of the variable resistor R1, an inverting input end of the operational amplifier AR2 is connected with one end of the resistor R3 and the other end of the resistor R2, and the other end of the variable resistor R1 is connected with the power supply module; the other end of the transient suppression diode TVS, the other end of the capacitor C1 and the other end of the resistor R3 are all grounded.
The amplification output circuit comprises a resistor R5, one end of a resistor R5 is connected with the output end of the signal detection circuit, and the other end of a resistor R5 is connected with one end of a capacitor C4, one end of a capacitor C3 and one end of a resistor R9; the other end of the capacitor C4 is connected with one end of a resistor R6 and the non-inverting input end of an operational amplifier AR3, the inverting input end of the operational amplifier AR3 is connected with one end of a resistor R7, one end of a resistor R8 and the drain of a field effect transistor Q6 of the signal compensation circuit, and the other end of the resistor R8 is connected with the output end of the operational amplifier AR3, one end of a normally open switch K2-2 of the signal compensation circuit, the other end of the resistor R9, one end of a resistor R10, one end of the resistor R11 and the base of a triode Q10; a collector of the triode Q10 is connected with one end of the resistor R14, an emitter of the triode Q7 and a base of the triode Q9, a base of the triode Q7 is connected with the other end of the resistor R14 and one end of the resistor R13, and a collector of the triode Q7 is connected with the base of the triode Q8, the other end of the resistor R13 and one end of the resistor R12; an emitter of the triode Q8 is connected with a collector of the triode Q9 and one end of a capacitor C5, and the other end of the capacitor C5 is connected with the control unit; the other end of the resistor R10, the other end of the resistor R12 and the collector of the triode Q8 are all connected with the power supply module, and the other end of the resistor R6, the other end of the resistor R7, the other end of the capacitor C3, the other end of the resistor R11, the emitter of the triode Q10 and the emitter of the triode Q9 are all grounded.
The signal compensation circuit comprises a temperature sensor U2 for detecting the temperature in a channel, wherein a power supply end of the temperature sensor U2 is connected with one end of an inductor L3, an output end of the temperature sensor U2 is connected with one end of a resistor R16, and the other end of a resistor R16 is connected with one end of a resistor R17 and one end of a capacitor C6; the other end of the resistor R17 is connected with one end of a capacitor C7 and the non-inverting input end of an operational amplifier AR4, the inverting input end of the operational amplifier AR4 is connected with one end of a resistor R19 and one end of a resistor R18, and the other end of the resistor R18 is connected with the output end of the operational amplifier AR4, the other end of the capacitor C6, one end of a normally open switch K2-1 and the non-inverting input end of the operational amplifier AR 5; the inverting input end of the operational amplifier AR5 is connected with one end of the resistor R21 and one end of the resistor R20, the output end of the operational amplifier AR5 is connected with the anode of the diode D3, and the cathode of the diode D3 is connected with the base of the triode Q11; an emitter of the triode Q11 is connected with one end of the resistor R22, and a collector of the triode Q11 is connected with the anode of the diode D4 and one end of the relay K2; the other end of the normally-open switch K2-1 is connected with one end of a resistor R23, and the other end of a resistor R23 is connected with one end of a resistor R24, one end of a capacitor C8 and the non-inverting input end of an operational amplifier AR 6; the inverting input end of the operational amplifier AR6 is connected with one end of a resistor R25, and the output end of the operational amplifier AR6 is connected with the other end of a capacitor C8, the other end of the resistor R24 and the grid electrode of a field effect transistor Q6; the drain electrode of the field effect transistor Q6 is connected with one end of the R7 of the amplification output circuit, the source electrode of the field effect transistor Q6 is connected with one end of a normally open switch K2-2, the other end of the normally open switch K2-2 is connected with the other end of the R8 of the electrical amplification output circuit, and the normally open switch K2-2 and the normally open switch K2-1 are both controlled by a relay K2; the other end of the inductor L3, the other end of the resistor R20, the other end of the relay K2 and the negative electrode of the diode D4 are all connected with the power supply module, and the other end of the capacitor C7, the grounding end of the temperature sensor U2, the other end of the resistor R19, the other end of the resistor R21, the other end of the resistor R22 and the other end of the resistor R25 are all grounded.
The cable channel monitoring assembly comprises a water level sensor for detecting the water level in the channel, an infrared array temperature measuring sensor for detecting the temperature of the high-voltage cable and/or a grounding circulation sensor for detecting the grounding of the high-voltage cable, and the water level sensor, the infrared temperature measuring array and the grounding circulation sensor are respectively connected with corresponding wireless transmitting modules; the wireless transmitting module is connected with the edge Internet of things receiving assembly.
The invention has the beneficial effects that:
1. the system comprises an outer well cover monitoring and alarming component, an inner well cover position detecting component, an environment monitoring component, a cable channel monitoring component, a wireless communication transceiving module, a control platform and a working person, wherein the outer well cover monitoring and alarming component can monitor the opening state of an outer well cover in real time, the inner well cover position detecting component monitors the inclination state of the well cover, the environment monitoring component integrally monitors the environment in a channel, the cable channel monitoring component monitors the cable temperature, the grounding circulation, the channel water level and the like of a high-voltage cable, the wireless communication transceiving module is uniformly connected into the control platform through an internet of things protocol, the environment monitoring data and the cable data are uniformly transmitted to the control platform, and the working person can monitor the well cover, the channel and the cable in real time through the control platform; realize that outer well lid opens the warning, interior well lid slope is reported to the police, intelligent monitoring and early warning functions such as in-channel environment monitoring, combine thing networking and management and control platform to have realized demolising the well lid violence, illegal real-time that gets into, the real-time supervision of in-channel environment of cable channel and equipment state, make managers can be to the well lid, the equipment state in the cable channel carries out real time monitoring, maximum guarantee cable and passageway safety, prevent that personnel from illegally opening, the cable channel of cominging in and going out at will, it takes place to reduce the cable channel equipment phenomenon of stealing, the holographic perception of in-channel environment of cable channel and equipment running state has been realized.
2. The signal detection circuit, the amplification output circuit and the signal compensation circuit perform amplification compensation processing on data monitored by the environment monitoring assembly, loss compensation is performed on signals transmitted in a channel in a long distance, meanwhile, monitoring signals can be adjusted according to the environment temperature in the channel, and the influence of fire or high temperature generated by the channel on the transmission error of the monitoring signals is avoided; the tunnel monitoring system has the characteristics of channel theft prevention, remote monitoring, high safety, flexible deployment, long service life and convenience in maintenance, and is particularly suitable for tunnel scenes with severe environments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the system of the present application as a whole
Fig. 2 is a schematic sectional view of the well lid.
FIG. 3 is a schematic view of the outer side of the inner well cover.
FIG. 4 is a schematic view of the inner side structure of the inner well cover
Fig. 5 is a circuit schematic diagram of the outer well lid monitoring alarm assembly.
FIG. 6 is a schematic circuit diagram of the inner well cover position sensing assembly.
Fig. 7 is a schematic diagram of the connection of the signal detection circuit and the amplification output circuit.
Fig. 8 is a circuit diagram of a signal compensation circuit.
In the figure, 1 is outer well lid, 2 is interior well lid, 3 is normally closed travel switch SQ1, 4 is cable channel, 5 is interior well lid position detection subassembly, 6 is power module, 7 is edge thing allies oneself with receiving assembly, 8 is the environmental monitoring subassembly, 9 is the handle, 10 is the anticorrosion data plate, 11 is locking device, 12 is the control unit, 13 is the strengthening rib, 14 is the management and control platform, 151 is ground connection circulation sensor, 152 is infrared array temperature measurement sensor, 153 is level sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
A distributed intelligent edge thing networking well lid monitoring system based on the power Internet of things is disclosed, as shown in figures 1-3, and comprises a cable channel 4 and a high-voltage cable arranged in the cable channel 4, wherein a plurality of inspection wells are arranged at the upper ends of the cable channel 4, each inspection well comprises an outer well lid 1 and an inner well lid 2 matched with the outer well lid 1, an inner well lid position detection assembly 5 for detecting whether the inner well lid inclines or not, a power supply module 6 for providing a power supply, an edge thing networking receiving assembly 7 for receiving and sending sensor data and processing the data, an environment monitoring assembly 8 for monitoring channel conditions and a control unit 12 for overall management and control are arranged on the inner well lid 2, the monitoring system further comprises a cable channel monitoring assembly and a management and control platform 14, the cable channel monitoring assembly is in communication connection with the edge thing networking receiving assembly 7, the edge internet of things receiving assembly 7 is in communication connection with the management and control platform 14, and the edge internet of things receiving assembly 7 sends data collected by the cable channel monitoring assembly and the environment monitoring assembly 8 to the management and control platform 14 in a wireless mode.
Interior well lid 2 sets up in the below of well lid 1, plays the effect of secondary protection, and the middle part of well lid 1 lower surface is equipped with strengthening rib 13, plays the effect of strengthening to the intensity of well lid 1. The outer well lid 1 is provided with an outer well lid monitoring alarm component for monitoring whether the outer well lid 1 is opened in real time, so that the monitoring and reminding functions are achieved; interior well lid position detection subassembly 5, edge thing ally oneself with receiving assembly 7, the control unit 12 and environmental monitoring subassembly 8 all are connected with power module 6 electricity, and edge thing allies oneself with receiving assembly 7 and sets up the cable channel monitoring subassembly communication connection in well lid lower part cable channel 4, and edge thing allies oneself with receiving assembly 7 and the management and control platform communication connection who sets up at distal end surveillance center, and edge thing allies oneself with receiving assembly 7 and the control unit 12 wired connection. The cable channel monitoring assembly is used for monitoring a high-voltage cable in a channel below the well cover in real time, data monitored by the cable channel monitoring assembly are wirelessly sent to the edge Internet of things receiving assembly 7, the edge Internet of things receiving assembly 7 receives the data and then sends signals to the control platform, and the control platform is convenient to monitor conditions in the channel cable in real time.
The inner well cover is also provided with a handle 9 convenient for maintenance personnel to lift, an anti-corrosion nameplate 10 and a locking device 11 for locking the inner well cover, and the locking device can adopt an electromagnetic lock or a common lock and the like; the inner well cover 2 and the outer well cover 1 are both made of unsaturated resin SMC through one-step molding, and are light in weight, high in strength, strong in bearing capacity and impact-resistant; the monitoring system integrally adopts IP68 level protection grade, and is waterproof and moistureproof and can stably work for a long time; the handle is made of 304 stainless steel materials.
The environmental monitoring module 8 comprises four gas sensors of CH4, CO, H2S and O2, a temperature sensor, a humidity sensor, a smoke sensor and the like, and the acquired sensor data are sent to the edge thing allies oneself with receiving assembly in a wired/wireless mode by the environmental monitoring module 8. The cable channel monitoring assembly comprises a grounding loop flow sensor 151, an infrared array temperature measuring sensor 152, a water level sensor 153 and the like, wherein the grounding loop flow sensor 151 monitors the grounding condition of a cable; the infrared array temperature measurement sensor 152 is used for detecting the temperature of the cable in the channel 4; the water level sensor 153 is used for detecting the water level in the channel 4; in this embodiment, each sensor is in the prior art, and is not described herein again; the data collected by each sensor of the cable channel monitoring assembly are connected with the edge Internet of things receiving assembly 7 through wireless communication of a wireless transmitting module such as WIFI, ZigBee and other support materials networking protocols.
As shown in fig. 4, the outer manhole cover monitoring alarm assembly comprises a normally closed travel switch SQ 13, wherein the normally closed travel switch SQ 13 is fixedly arranged on the side wall between the outer manhole cover 1 and the inner manhole cover 2, and the top of the normally closed travel switch SQ1 is in contact with the lower surface of the outer manhole cover 1; when the outer well lid 1 is closed, the outer well lid 1 presses down a button of a normally closed travel switch SQ1, when the outer well lid 1 is opened, the button on the normally closed travel switch SQ1 bounces, and the monitoring of the opening or closing action of the outer well lid is realized through the action of the normally closed travel switch SQ1 button; one end of the normally closed travel switch SQ1 is connected with one end of a resistor R31, and the other end of the normally closed travel switch SQ1 is connected with one end of a resistor R35 and the base electrode of a triode Q1; the other end of the resistor R31 is connected with the positive electrode of the battery BT1 and one end of the resistor R32, and the other end of the resistor R32 is connected with the other end of the resistor R35 and the emitter of the triode Q2; the base electrode of the triode Q2 is connected with the emitter electrode of the triode Q1, and the collector electrode of the triode Q2 is connected with the collector electrode of the triode Q1, one end of the resistor R34 and the anode of the light-emitting diode D1; the other end of the resistor R34 is connected with one end of an alarm LS1, the other end of the alarm LS1 is connected with one end of a resistor R33 and one end of a normally closed switch SW1, and the other end of the normally closed switch SW1 is connected with the negative electrode of a battery BT 1; the other end of the resistor R33 is connected with the cathode of the light-emitting diode D1. The triode Q1 and the triode Q2 form a composite triode to better drive the alarm LS1 and the light emitting diode D1; when the button of the normally closed travel switch SQ1 is pressed down, the triode Q1 is not conducted with the triode Q2, the alarm LS1 is not started with the light emitting diode D1, when the button of the normally closed travel switch SQ1 is bounced, the triode Q1 is conducted with the triode Q2, the alarm LS1 is started with the light emitting diode D1, the monitoring and alarming function when the outer well lid is opened or closed is achieved, when maintenance personnel maintain, the function of manually closing the normally closed switch SW1 to monitor opening and closing of the outer well lid is achieved, after maintenance is completed, the normally closed switch SW1 is closed, the outer well lid is placed, the operation mode is simple, and real-time monitoring of opening and closing of the outer well lid can be achieved.
As shown in fig. 5, the inner well lid position detecting assembly 5 includes an inclination sensor fixedly disposed on the inner well lid, an output end of the inclination sensor is connected to one end of a resistor R36, another end of a resistor R36 is connected to one end of a capacitor C15 and a base of a transistor Q4, the resistor R36 and the capacitor C15 form a low-pass filter, and the low-pass filter filters noise signals in output signals of the inclination sensor; an emitter of the triode Q4 is connected with one end of a resistor R38, one end of a normally-open switch K1-1 and a non-inverting input end of an operational amplifier AR7, an inverting input end of the operational amplifier AR7 is connected with one end of a resistor R37 and one end of a resistor R39, an output end of the operational amplifier AR7 is connected with a base electrode of the triode Q3, and an emitter follower is formed by the triode Q4 and the resistor R38 and plays a role in signal isolation and buffering; an emitter of the triode Q3 is connected with one end of the resistor R41, and a collector of the triode Q3 is connected with one end of the relay K1 and the anode of the diode D2; the other end of the normally-open switch K1-1 is connected with one end of a resistor R40, and the other end of the resistor R40 is connected with the base electrode of a triode Q5; an emitter of the triode Q5 is connected with one end of a resistor R42, one end of a capacitor C18 and one end of a capacitor C17, a collector of the triode Q5 is connected with one end of a capacitor C16, one end of a capacitor C19, one end of an inductor L1 and the other end of the capacitor C17, the other end of the capacitor C19 is connected with a transmitter E1, and a transmitter E1 is connected with a control platform; the power supply end of the tilt angle sensor, the collector of the triode Q4, the other end of the resistor R37, the other end of the relay K1, the cathode of the diode D2, the other end of the inductor L1 and the other end of the capacitor C16 are all connected with the power supply module, the other end of the capacitor C15, the other end of the resistor R38, the other end of the resistor R39, the grounding end of the tilt angle sensor, the other end of the resistor R41, the other end of the resistor R42 and the other end of the capacitor C18 are all grounded, and the normally-open switch K1-1 is controlled by the relay K1. Resistance R37 and resistance R39 are divider resistance, the inclination signal that triode Q4 output is input to fortune and is put the homophase input end of ware AR7, compare with the voltage signal on the resistance R39, when the amplitude of inclination signal is greater than the voltage signal on resistance R39, fortune puts ware AR7 output high level, triode Q3 switches on, relay K1 is electrified, normally open switch K1-1 is closed, inclination signal transmission arrives triode Q5's base, and send the management and control platform through transmitter E1, be convenient for the management and control platform in time receive the abnormal signal at interior well lid inclination, make things convenient for maintenance personal in time to maintain.
The edge Internet of things receiving assembly 7 comprises a frequency signal receiver and a wireless communication transceiving module, wherein the frequency signal receiver is used for receiving signals output by the cable channel monitoring assembly, the frequency signal receiver is connected with the control unit 12, and the control unit 12 is connected with the wireless communication transceiving module; the wireless communication transceiver module is in communication connection with the control platform, and the frequency signal receiver and the wireless communication transceiver module are both connected with the power supply module 6. In this embodiment, the frequency signal receiver may directly adopt an existing multi-channel frequency signal receiver, the wireless communication transceiver module wirelessly communicates with the control platform in a 4G or 5G manner, and the wireless communication transceiver module communicates with the cable channel monitoring assembly in a wireless communication manner supporting a networking protocol such as WIFI or ZigBee; the wireless communication transceiver module 7, the control unit and the power supply module belong to the prior art and are not described in detail herein.
As shown in fig. 6-7, a signal detection circuit, an amplification output circuit and a signal compensation circuit are disposed between the frequency signal receiver and the control unit 12, an input end of the signal detection circuit is correspondingly connected to an output port of the frequency annunciator, an output end of the signal detection circuit is connected to an input end of the amplification output circuit, an output end of the amplification output circuit is connected to the control unit, and the amplification output circuit is connected to the signal compensation circuit; and the signal detection circuit, the amplification output circuit and the signal compensation circuit are all connected with the power supply module.
The signal detection circuit comprises an inductor L2, one end of an inductor L2 is connected with the output end of the frequency signal receiver and one end of a transient suppression diode TVS, and the other end of an inductor L2 is connected with one end of a capacitor C1, one end of a resistor R15, the anode of a thyristor SCR1, the non-inverting input end of an operational amplifier AR1 and the non-inverting input end of an operational amplifier AR 2; the other end of the resistor R15 is connected with one end of a capacitor C2, and the other end of the capacitor C2 is connected with the cathode of the thyristor SCR1 and the input end of the amplification output circuit; the control electrode of the thyristor SCR1 is connected with one end of a resistor R4, and the other end of the resistor R4 is connected with the output end of an exclusive-OR gate U1; two input ends of the exclusive-or gate U1 are respectively connected with an output end of the operational amplifier AR1 and an output end of the operational amplifier AR2, an inverting input end of the operational amplifier AR1 is connected with one end of the resistor R2 and one end of the variable resistor R1, an inverting input end of the operational amplifier AR2 is connected with one end of the resistor R3 and the other end of the resistor R2, and the other end of the variable resistor R1 is connected with the power supply module; the other end of the transient suppression diode TVS, the other end of the capacitor C1 and the other end of the resistor R3 are all grounded. The transient suppression diode TVS is used for suppressing abnormal peak signals in the received signals and protecting the circuit; the inductor L2 and the capacitor C1 form an impedance matching circuit to inhibit reflection interference in the signal transmission process; when the amplitude of the output signal of the impedance matching circuit is between the potential of the resistor R2 and the potential of the resistor R3, the XOR gate U1 outputs a high level, the control electrode of the thyristor SCR1 receives the signal conduction, the output signal of the impedance matching circuit is transmitted to the amplification output circuit through the thyristor SCR1, the abnormal high level and the low level signal can be retained by the method, the guarantee is provided for the amplification of the later-stage signal, and the amplitude interval for retaining the required signal can be changed by adjusting the resistance value of the variable resistor R1; the resistor R15 and the capacitor C2 are connected in series and then connected in parallel with the thyristor SCR1 to play a role in protecting the thyristor SCR 1.
The amplifying output circuit comprises a resistor R5, one end of a resistor R5 is connected with the output end of the signal detection circuit, namely the cathode of the thyristor SCR1, and the other end of the resistor R5 is connected with one end of a capacitor C4, one end of a capacitor C3 and one end of a resistor R9; the other end of the capacitor C4 is connected with one end of a resistor R6 and the non-inverting input end of an operational amplifier AR3, the inverting input end of the operational amplifier AR3 is connected with one end of a resistor R7, one end of a resistor R8 and the drain of a field effect transistor Q6 of the signal compensation circuit, and the other end of the resistor R8 is connected with the output end of the operational amplifier AR3, one end of a normally open switch K2-2 of the signal compensation circuit, the other end of the resistor R9, one end of a resistor R10, one end of the resistor R11 and the base of a triode Q10; a collector of the triode Q10 is connected with one end of the resistor R14, an emitter of the triode Q7 and a base of the triode Q9, a base of the triode Q7 is connected with the other end of the resistor R14 and one end of the resistor R13, and a collector of the triode Q7 is connected with the base of the triode Q8, the other end of the resistor R13 and one end of the resistor R12; an emitter of the triode Q8 is connected with a collector of the triode Q9 and one end of a capacitor C5, and the other end of the capacitor C5 is connected with the control unit; the other end of the resistor R10, the other end of the resistor R12 and the collector of the triode Q8 are all connected with the power supply module, and the other end of the resistor R6, the other end of the resistor R7, the other end of the capacitor C3, the other end of the resistor R11, the emitter of the triode Q10 and the emitter of the triode Q9 are all grounded. The resistor R5, the capacitor C3, the capacitor C4, the resistor R9, the resistor R6, the resistor R7, the resistor R8 and the operational amplifier AR3 form an infinite gain filtering amplifier, and the selected signals are amplified while filtering; the resistor R10 and the resistor R11 are base bias resistors and provide proper static conditions for the conduction of the transistor Q10. The triode Q10, the triode Q7, the triode Q8, the triode Q9, the resistor R12, the resistor R13 and the resistor R14 form a complementary push-pull circuit, cross-over distortion in transmission signals can be eliminated, and the bias values of the triode Q8 and the triode Q9 can be adjusted by adjusting the resistance values of the resistor R13 and the resistor R14.
The signal compensation circuit comprises a temperature sensor U2 for detecting the temperature in the channel 4, the temperature sensor U2 is fixedly arranged on the lower surface of the inner well lid 2, a protective shell can be additionally arranged outside the temperature sensor U2 for protecting the temperature sensor U, and a through hole is reserved in the protective shell to facilitate the air in the channel to enter; in this implementation, the temperature sensor U2 is of a model TS318-1B0814, and can directly use the temperature sensor in the environment monitoring component to output a direct current analog voltage signal. The power supply end of the temperature sensor U2 is connected with one end of an inductor L3, the output end of the temperature sensor U2 is connected with one end of a resistor R16, and the other end of the resistor R16 is connected with one end of a resistor R17 and one end of a capacitor C6; the other end of the resistor R17 is connected with one end of a capacitor C7 and the non-inverting input end of an operational amplifier AR4, the inverting input end of the operational amplifier AR4 is connected with one end of a resistor R19 and one end of a resistor R18, and the other end of the resistor R18 is connected with the output end of the operational amplifier AR4, the other end of the capacitor C6, one end of a normally open switch K2-1 and the non-inverting input end of the operational amplifier AR 5; the inverting input end of the operational amplifier AR5 is connected with one end of the resistor R21 and one end of the resistor R20, the output end of the operational amplifier AR5 is connected with the anode of the diode D3, and the cathode of the diode D3 is connected with the base of the triode Q11; an emitter of the triode Q11 is connected with one end of the resistor R22, and a collector of the triode Q11 is connected with the anode of the diode D4 and one end of the relay K2; the other end of the normally-open switch K2-1 is connected with one end of a resistor R23, and the other end of a resistor R23 is connected with one end of a resistor R24, one end of a capacitor C8 and the non-inverting input end of an operational amplifier AR 6; the inverting input end of the operational amplifier AR6 is connected with one end of a resistor R25, and the output end of the operational amplifier AR6 is connected with the other end of a capacitor C8, the other end of the resistor R24 and the grid electrode of a field effect transistor Q6; the drain electrode of the field effect transistor Q6 is connected with one end of the R7 of the amplification output circuit, the source electrode of the field effect transistor Q6 is connected with one end of a normally open switch K2-2, the other end of the normally open switch K2-2 is connected with the other end of the R8 of the electrical amplification output circuit, and the normally open switch K2-2 and the normally open switch K2-1 are both controlled by a relay K2; the other end of the inductor L3, the other end of the resistor R20, the other end of the relay K2 and the negative electrode of the diode D4 are all connected with the power supply module, and the other end of the capacitor C7, the grounding end of the temperature sensor U2, the other end of the resistor R19, the other end of the resistor R21, the other end of the resistor R22 and the other end of the resistor R25 are all grounded. A second-order low-pass filter is formed by a resistor R16, a resistor R17, a capacitor C6, a capacitor C7, a resistor R18, a resistor R19 and an operational amplifier AR4, analog voltage signals output by a temperature sensor U2 are filtered and amplified, the resistor R20 and the resistor R21 are voltage dividing resistors, when the amplitude of the amplified temperature signals is larger than the potential of the resistor R21, the operational amplifier AR5 outputs high level, a triode Q11 is switched on, a relay K2 is electrified, a normally open switch K2-1 and a normally open switch K2-2 are simultaneously closed, the amplitude of the amplified temperature signals is transmitted to an integrator formed by the resistor R23, the resistor R24, a resistor R25, the capacitor C8 and the operational amplifier AR6 through the normally open switch K2-1, temperature change rate signals synchronous with temperature change are output by the output end of the operational amplifier AR6 and are transmitted to a grid electrode of a field effect transistor Q6 to change the leakage source of the drain source of the field effect transistor Q6 and further change the output gain of a resistor, that is, when the temperature in the channel rises, the gain of the amplifying output circuit is increased, and then the loss of the monitoring data in the wireless transmission process under the condition of high temperature or fire disaster is ensured, so that the accuracy of the monitoring data under the extreme condition is ensured.
When the invention is used:
the opening state of the outer well lid can be monitored in real time and an alarm can be given by monitoring the state between the outer well lid and a button on a normally closed travel switch SQ1, the inclination state of the well lid is monitored in real time by an inner well lid position detection assembly through an inclination angle sensor, and the monitored inclination data is sent to a control platform when the inclination angle is large, so that the control platform can realize real-time monitoring of the inner well lid, and timely maintenance of maintenance personnel is ensured; the environment monitoring assembly monitors gas and temperature and humidity in the channel, the cable channel monitoring assembly monitors high-voltage cables in the channel, all monitoring data are uniformly transmitted to the control platform through the wireless communication transceiver module, and workers can monitor well covers and channel conditions in real time through the control platform.
A distributed intelligent edge Internet of things well lid monitoring system monitoring method based on an electric power Internet of things comprises the following steps:
s1: the monitoring system acquires the temperature of the cable channel, the humidity of the cable channel, the water level of the cable channel and the gas content of the cable channel;
s2: establishing a temperature analysis model Te, a humidity analysis model Re, a water level analysis model We and a gas analysis model Ge;
s3: establishing a channel environment analysis model E, wherein E =30% of Te +20% of Re +20% of We +30% of Ge;
s4: when E is less than 20%, indicating normal;
when E is more than or equal to 20%, indicating a serious defect, and giving a serious alarm to the channel environment state;
and when the E is more than or equal to 40 percent, indicating an emergency defect and giving an emergency alarm on the channel environment state.
Wherein, in the temperature analysis model Te:
t represents the ambient temperature and, therefore,
when 10 ℃ < T <40 ℃, Te =0, the output channel ambient temperature is normal;
when the temperature of 40 ℃ is less than T <70 ℃ or-10 ℃ is less than T <10 ℃, Te =1, the environmental temperature of the output channel is seriously defective;
and when T is more than 70 ℃ or T < -10 ℃ and Te =2, outputting the critical defect of the environment temperature of the channel.
Wherein, in the humidity analysis model Re:
r represents the ambient temperature, and R represents the ambient temperature,
re =0 when 0% < R <50%, output channel ambient humidity is normal;
re =1, output channel ambient humidity is severely deficient when 50% < R < 70%;
when R >70%, Re =2, output channel ambient humidity critical defects.
Wherein, in water level analysis model We:
w represents the water level of the passage,
when 0< W <20cm, We =0, the output channel ambient water level is normal;
when 20< W <50cm, We =1, the output channel environmental water level is seriously defective;
when W >50cm, We =2, the output channel ambient water level is critical.
Wherein, in the gas analysis model Ge:
g represents the concentration of the gas in the gas,
when G satisfies (CH)4<20% LEL) and (H)2S<10ppm) and (CO)<50ppm) and (O)2>19.5%), Ge =0, and the ambient gas content of the output channel is normal;
when G satisfies (CH)4>20% LEL) and (H)2S>10ppm) and (CO)>50ppm) and (O)2<19.5%), Ge =1, and the output channel ambient gas content is abnormal.
The following table shows the risk levels of the temperature analysis model Te, the humidity analysis model Re, the water level analysis model We and the gas analysis model Ge for each model parameter and the corresponding channel environment analysis model E:
the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A distributed intelligent edge Internet of things well lid monitoring system based on an electric power Internet of things comprises an outer well lid (1) and an inner well lid (2) matched with the outer well lid (1), it is characterized in that an outer well cover monitoring and alarming component is arranged on the outer well cover (1), an inner well cover position detection component (5), a power supply module (6), a marginal object joint receiving component (7) and an environment monitoring component (8) are arranged on the inner well cover (2), the inner well cover position detection component (5), the marginal object joint receiving component (7) and the environment monitoring component (8) are all electrically connected with the power supply module (6), and edge thing allies oneself with receiving component (7) and the cable channel monitoring subassembly communication connection who sets up in well lid lower part passageway (4), and edge thing allies oneself with receiving component (7) and interior well lid position detection subassembly (5) all with the management and control platform communication connection who sets up at distal end surveillance center.
2. The distributed intelligent fringe internet-of-things well lid monitoring system based on the power internet-of-things as claimed in claim 1, wherein the outer well lid monitoring alarm assembly comprises a normally closed travel switch SQ1 (3), the normally closed travel switch SQ1 (3) is fixedly arranged on a side wall between the outer well lid (1) and the inner well lid (2), and the top of the normally closed travel switch SQ1 (3) is in contact with the lower surface of the outer well lid (1); one end of the normally closed travel switch SQ1 (3) is connected with one end of a resistor R31, and the other end of the normally closed travel switch SQ1 (3) is connected with one end of a resistor R35 and the base electrode of a triode Q1; the other end of the resistor R31 is connected with the positive electrode of the battery BT1 and one end of the resistor R32, and the other end of the resistor R32 is connected with the other end of the resistor R35 and the emitter of the triode Q2; the base electrode of the triode Q2 is connected with the emitter electrode of the triode Q1, and the collector electrode of the triode Q2 is connected with the collector electrode of the triode Q1, one end of the resistor R34 and the anode of the light-emitting diode D1; the other end of the resistor R34 is connected with one end of an alarm LS1, the other end of the alarm LS1 is connected with one end of a resistor R33 and one end of a normally closed switch SW1, and the other end of the normally closed switch SW1 is connected with the negative electrode of a battery BT 1; the other end of the resistor R33 is connected with the cathode of the light-emitting diode D1.
3. The distributed intelligent edge internet of things well lid monitoring system based on the power internet of things is characterized in that the inner well lid position detection assembly (5) comprises an inclination angle sensor fixedly arranged on the inner well lid (2), the output end of the inclination angle sensor is connected with one end of a resistor R36, and the other end of a resistor R36 is connected with one end of a capacitor C15 and the base of a triode Q4; an emitter of the triode Q4 is connected with one end of a resistor R38, one end of a normally-open switch K1-1 and a non-inverting input end of an operational amplifier AR7, an inverting input end of the operational amplifier AR7 is connected with one end of a resistor R37 and one end of a resistor R39, and an output end of the operational amplifier AR7 is connected with a base electrode of the triode Q3; an emitter of the triode Q3 is connected with one end of the resistor R41, and a collector of the triode Q3 is connected with one end of the relay K1 and the anode of the diode D2; the other end of the normally-open switch K1-1 is connected with one end of a resistor R40, and the other end of the resistor R40 is connected with the base electrode of a triode Q5; an emitter of the triode Q5 is connected with one end of a resistor R42, one end of a capacitor C18 and one end of a capacitor C17, a collector of the triode Q5 is connected with one end of a capacitor C16, one end of a capacitor C19, one end of an inductor L1 and the other end of the capacitor C17, the other end of the capacitor C19 is connected with a transmitter E1, and a transmitter E1 is connected with a control platform; the power supply end of the tilt angle sensor, the collector of the triode Q4, the other end of the resistor R37, the other end of the relay K1, the cathode of the diode D2, the other end of the inductor L1 and the other end of the capacitor C16 are all connected with the power supply module, the other end of the capacitor C15, the other end of the resistor R38, the other end of the resistor R39, the other end of the resistor R41, the other end of the resistor R42 and the other end of the capacitor C18 are all grounded, and the normally-open switch K1-1 is controlled by the relay K1.
4. The distributed intelligent edge internet-of-things well lid monitoring system based on the power internet-of-things is characterized in that the edge internet-of-things receiving assembly comprises a frequency signal receiver for receiving an output signal of the cable channel monitoring assembly, the frequency signal receiver is connected with a control unit (12), and the control unit (12) is connected with a wireless communication transceiving module (7); the wireless communication transceiver module (7) is in communication connection with the control platform.
5. The distributed intelligent edge Internet of things well lid monitoring system based on the power Internet of things is characterized in that a signal detection circuit, an amplification output circuit and a signal compensation circuit are arranged between the frequency signal receiver and the control unit (12), the input end of the signal detection circuit is correspondingly connected with the output port of the frequency signal receiver, the output end of the signal detection circuit is connected with the input end of the amplification output circuit, the output end of the amplification output circuit is connected with the control unit, and the amplification output circuit is connected with the signal compensation circuit; and the signal detection circuit, the amplification output circuit and the signal compensation circuit are all connected with the power supply module.
6. The distributed intelligent edge internet-of-things well lid monitoring system based on the power internet-of-things is characterized in that the signal detection circuit comprises an inductor L2, one end of the inductor L2 is connected with the output end of the frequency signal receiver and one end of the transient suppression diode TVS, and the other end of the inductor L2 is connected with one end of a capacitor C1, one end of a resistor R15, the anode of a thyristor SCR1, the non-inverting input end of an operational amplifier AR1 and the non-inverting input end of an operational amplifier AR 2; the other end of the resistor R15 is connected with one end of a capacitor C2, and the other end of the capacitor C2 is connected with the cathode of the thyristor SCR1 and the input end of the amplification output circuit; the control electrode of the thyristor SCR1 is connected with one end of a resistor R4, and the other end of the resistor R4 is connected with the output end of an exclusive-OR gate U1; two input ends of the exclusive-or gate U1 are respectively connected with an output end of the operational amplifier AR1 and an output end of the operational amplifier AR2, an inverting input end of the operational amplifier AR1 is connected with one end of the resistor R2 and one end of the variable resistor R1, an inverting input end of the operational amplifier AR2 is connected with one end of the resistor R3 and the other end of the resistor R2, and the other end of the variable resistor R1 is connected with the power supply module; the other end of the transient suppression diode TVS, the other end of the capacitor C1 and the other end of the resistor R3 are all grounded.
7. The distributed intelligent fringe Internet of things well lid monitoring system based on the power Internet of things as claimed in claim 5, wherein the amplifying output circuit comprises a resistor R5, one end of the resistor R5 is connected with the output end of the signal detection circuit, and the other end of the resistor R5 is connected with one end of a capacitor C4, one end of a capacitor C3 and one end of a resistor R9; the other end of the capacitor C4 is connected with one end of a resistor R6 and the non-inverting input end of an operational amplifier AR3, the inverting input end of the operational amplifier AR3 is connected with one end of a resistor R7, one end of a resistor R8 and the drain of a field effect transistor Q6 of the signal compensation circuit, and the other end of the resistor R8 is connected with the output end of the operational amplifier AR3, one end of a normally open switch K2-2 of the signal compensation circuit, the other end of the resistor R9, one end of a resistor R10, one end of the resistor R11 and the base of a triode Q10; a collector of the triode Q10 is connected with one end of the resistor R14, an emitter of the triode Q7 and a base of the triode Q9, a base of the triode Q7 is connected with the other end of the resistor R14 and one end of the resistor R13, and a collector of the triode Q7 is connected with the base of the triode Q8, the other end of the resistor R13 and one end of the resistor R12; an emitter of the triode Q8 is connected with a collector of the triode Q9 and one end of a capacitor C5, and the other end of the capacitor C5 is connected with the control unit; the other end of the resistor R10, the other end of the resistor R12 and the collector of the triode Q8 are all connected with the power supply module, and the other end of the resistor R6, the other end of the resistor R7, the other end of the capacitor C3, the other end of the resistor R11, the emitter of the triode Q10 and the emitter of the triode Q9 are all grounded.
8. The distributed intelligent edge internet-of-things well lid monitoring system based on the power internet-of-things is characterized in that the signal compensation circuit comprises a temperature sensor U2 for detecting the temperature in the channel (4), wherein a power supply end of the temperature sensor U2 is connected with one end of an inductor L3, an output end of the temperature sensor U2 is connected with one end of a resistor R16, and the other end of the resistor R16 is connected with one end of a resistor R17 and one end of a capacitor C6; the other end of the resistor R17 is connected with one end of a capacitor C7 and the non-inverting input end of an operational amplifier AR4, the inverting input end of the operational amplifier AR4 is connected with one end of a resistor R19 and one end of a resistor R18, and the other end of the resistor R18 is connected with the output end of the operational amplifier AR4, the other end of the capacitor C6, one end of a normally open switch K2-1 and the non-inverting input end of the operational amplifier AR 5; the inverting input end of the operational amplifier AR5 is connected with one end of the resistor R21 and one end of the resistor R20, the output end of the operational amplifier AR5 is connected with the anode of the diode D3, and the cathode of the diode D3 is connected with the base of the triode Q11; an emitter of the triode Q11 is connected with one end of the resistor R22, and a collector of the triode Q11 is connected with the anode of the diode D4 and one end of the relay K2; the other end of the normally-open switch K2-1 is connected with one end of a resistor R23, and the other end of a resistor R23 is connected with one end of a resistor R24, one end of a capacitor C8 and the non-inverting input end of an operational amplifier AR 6; the inverting input end of the operational amplifier AR6 is connected with one end of a resistor R25, and the output end of the operational amplifier AR6 is connected with the other end of a capacitor C8, the other end of the resistor R24 and the grid electrode of a field effect transistor Q6; the drain electrode of the field effect transistor Q6 is connected with one end of the R7 of the amplification output circuit, the source electrode of the field effect transistor Q6 is connected with one end of a normally open switch K2-2, the other end of the normally open switch K2-2 is connected with the other end of the R8 of the electrical amplification output circuit, and the normally open switch K2-2 and the normally open switch K2-1 are both controlled by a relay K2; the other end of the inductor L3, the other end of the resistor R20, the other end of the relay K2 and the negative electrode of the diode D4 are all connected with the power supply module, and the other end of the capacitor C7, the grounding end of the temperature sensor U2, the other end of the resistor R19, the other end of the resistor R21, the other end of the resistor R22 and the other end of the resistor R25 are all grounded.
9. The distributed intelligent fringe Internet of things well lid monitoring system based on the power Internet of things is characterized in that the cable channel monitoring assembly generally comprises a water level sensor (153) for detecting the water level in the channel (4), an infrared array temperature measurement sensor (152) for detecting the temperature of a high-voltage cable and/or a grounding circulation sensor (151) for detecting the grounding of the high-voltage cable, wherein the water level sensor (153), the infrared temperature measurement array (152) and the grounding circulation sensor (151) are respectively connected with corresponding wireless transmitting modules; the wireless transmitting module is connected with the edge Internet of things receiving assembly.
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| CN107024882A (en) * | 2017-04-29 | 2017-08-08 | 滨和环境建设集团有限公司 | A kind of intelligent well cover prior-warning device and pre-alarming control system |
| CN109697839A (en) * | 2018-12-11 | 2019-04-30 | 重庆邮电大学 | Intelligent well cover monitoring system based on technology of Internet of things |
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| CN113775532B (en) * | 2021-11-11 | 2022-02-22 | 济南英华自动化技术有限公司 | Distributed cable channel on-line monitoring system |
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