CN208158236U - Intelligent building total management system - Google Patents
Intelligent building total management system Download PDFInfo
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- CN208158236U CN208158236U CN201820726738.XU CN201820726738U CN208158236U CN 208158236 U CN208158236 U CN 208158236U CN 201820726738 U CN201820726738 U CN 201820726738U CN 208158236 U CN208158236 U CN 208158236U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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Abstract
The utility model discloses intelligent building total management systems.The system includes：Leak electricity monitor, and electric leakage monitor includes microprocessor, and the current transformer, input/output interface, power interface and the communication interface that are connected with the microprocessor；Voltage monitoring instrument is connected with electrical equipment；Electricity consumption monitoring device, electrical equipment connection；Equipment management circuit, including triode and relay, the collector of triode couple power supply, and the emitter of triode couples relay, and the contact of relay is connected with electrical equipment；Processing unit, display unit, data entry element and alarm unit, wherein, processing unit is connected with electric leakage monitor, voltage monitoring instrument and equipment management circuit respectively, and display unit includes LED display, alarm unit, including route early-warning lamp and equipment alarm lamp.By this system, electrical equipment and distribution line can be managed concentratedly and controlled.
Description
Technical field
The utility model relates to architectural control technical fields, more particularly, to a kind of intelligent building total management system.
Background technique
It modernizes in heavy construction, is provided with various electrical equipments more, the peace of the integrated management of electrical equipment to building
Full property has a great impact.Therefore multi-pass crosses intelligent building management system and various electrical equipments is managed concentratedly and monitored.
Wherein, Intelligent Building Control System mainly includes to air-conditioning, elevator, water supply, antitheft, fire prevention and the power supply-distribution system etc. in building
Control.
But existing building management system is mostly to carry out control management to electrical equipment by control platform, is used by monitoring
The operating condition and electricity consumption situation of electric equipment realize the management to building system.However it but has ignored to distribution line in building
Real time monitoring and administration of energy conservation.
It is equipped with various electrical equipments in building, electrical equipment is different degrees of with using the continuity of time to continuously emerge more
The problem of aging circuit, aging circuit lead to the decreasing insulating of route and then lead to the problem of electric leakage, and electric leakage is seriously
Possibly even there is electric arc and electric spark in side, and the combustible for surrounding of easily igniting gives national economy and people so as to cause electrical fire
People's lives and properties cause massive losses, have very big harmfulness.
In general commercial office complex, employee be mostly it is on and off duty according to the regular hour, often there is employee After Hours, forget
Note turns off the switch of the electrical equipments such as air-conditioning or electric light, causes the waste for the energy occur, keeps the energy consumption in the building Zheng Dong excessively high.
Existing building management system cannot achieve intelligentized control management, and management system cannot timely monitor building
Interior various information, staff can not be found the problem in time by management system, and then can not quickly understand equipment in building
Operation, maintenance and energy service condition, lead to that there are security risks.
Therefore it provides a kind of intelligent building total management system, to electrical equipment and distribution line carry out centralized management and
Control realizes energy conservation comprehensively, the work of daily maintenance is replaced with the control function of controller under the premise of meeting control requirement
Make, reduce workload, reduce the work mistake as maintenance personnel and caused by equipment is out of control or equipment damage, be this field urgently
Problem to be solved.
Utility model content
In view of this, the present invention provides a kind of intelligent building total management systems, to electrical equipment and distribution wire
Road is managed concentratedly and is controlled, and under the premise of meeting control requirement, energy conservation comprehensively is realized, with the control function generation of controller
For the work of daily maintenance, reduce workload, reduce the work mistake as maintenance personnel and caused by equipment is out of control or equipment
Damage.
In order to solve the above-mentioned technical problem, the utility model proposes a kind of intelligent building total management systems, including：
Leak electricity monitor, and the electric leakage monitor includes current transformer, microprocessor, input/output interface, power supply
Interface and communication interface, the current transformer, the input/output interface, the power interface and the communication interface
It is connected respectively with the microprocessor；
Voltage monitoring instrument, the voltage monitoring instrument are connected with the electrical equipment；
Electricity consumption monitoring device, the electricity consumption monitoring device are connected with the electrical equipment；
Equipment management circuit, the equipment management circuit include triode and relay, the collector of the triode
Power supply is coupled, the emitter of the triode couples the relay, and the contact of the relay is connected with the electrical equipment；
Processing unit, display unit, data entry element and alarm unit, wherein the processing unit respectively with it is described
Electric leakage monitor, the voltage monitoring instrument, the electricity consumption monitoring device are connected with the equipment management circuit, the display
Unit includes LED display, and the display unit, the data entry element and the alarm unit are single with the processing respectively
Member is connected, the alarm unit, including route early-warning lamp and equipment alarm lamp.
Further, further include：Storage unit, the storage unit are connected with the display unit, and the storage is single
Member is FLASH memory.
It further, further include having the data transmission unit connecting with the storage unit and data receipt unit, it is described
One data receipt unit corresponds to multiple data transmission units.
Further, the data entry element, further, including：Electric leakage threshold value typing end and circuit disconnect
Time typing end, wherein：
Electric leakage threshold value typing end is connected with the electric leakage monitor, and the electric leakage threshold value typing end is on first
Position machine；
The circuit disconnects time typing end, is connected with the processing unit, and the circuit disconnects the time
Typing end is the second host computer.
Further, the alarm unit further includes GSM communication interface.
Compared with prior art, the intelligent building total management system of the utility model, realizes following beneficial effect：
(1) the intelligent building total management system of the utility model, by electrical equipment and distribution line in building
Real time monitoring feeds back corresponding alarm signal to management system in time, makes work people when there is unit exception, aging circuit
Member can note abnormalities problem in time in office, and make in time it is corresponding check and maintenance process, reduce workload and
Cost of labor, while the leakage fire and equipment fault that avoid because monitoring improper appearance solve the problems, such as not in time, maximum journey
Degree is that user provides safety, comfortable environment.
(2) the intelligent building total management system of the utility model, according to the service condition of each electrical equipment, intelligent control
The disconnection and connection status of electricity consumption distribution line, avoid when not in use, and electrical equipment still in continuous running, makes whole building
Power consumption is excessively high, waste of energy.Staff also can according to the disconnection of history electricity consumption report routine adjustment electricity distribution line and
Connection Time, so that using energy source maximizes, user is satisfied to be maximized.
Certainly, any product for implementing the utility model specific needs while must not reach all the above technology effect
Fruit.
By the detailed description referring to the drawings to the exemplary embodiment of the utility model, the utility model it is other
Feature and its advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiments of the present invention, and
And together with its explanation for explaining the principles of the present invention.
Fig. 1 is the structural schematic diagram of intelligent building total management system described in the utility model embodiment 1；
Fig. 2 is the structural schematic diagram of intelligent building total management system described in the utility model embodiment 2.
Specific embodiment
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should be noted that：Unless another
It illustrates outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Embodiment 1：
As shown in Figure 1, intelligent building total management system, is connected with distribution line 200 and electrical equipment 201, including
Leak electricity monitor 202, voltage monitoring instrument 203, electricity consumption monitoring device 204 and equipment management circuit 205；Processing unit is (in figure
Be not shown), display unit 210, data entry element 211 and alarm unit 212；
Wherein：Electric leakage monitor 202 include current transformer, microprocessor, input/output interface, power interface and
Communication interface, current transformer, input/output interface, power interface and communication interface are connected with the microprocessor respectively；Leakage
Pyroelectric monitor instrument 202 can to the drain conditions of distribution line 200 carry out real-time monitoring, when 200 electrical leakage quantity of distribution line be greater than etc.
In leak electricity threshold value when, electric leakage monitor 202 by the address information of distribution line 200 and electric leakage data send.
Specifically, the drain conditions of distribution line 200, system are set everywhere in electric leakage 202 real-time monitoring building of monitor
The electric leakage threshold value of fixed each distribution line 200, when the electrical leakage quantity of the distribution line 200 monitored is more than or equal to the correspondence of system setting
When the electric leakage threshold value of distribution line 200, electric leakage monitor 202 records the address information of distribution line 200 at this time and electric leakage number
Value.Voltage monitoring instrument 203 is connect with electrical equipment 201, specific to monitor for the operation conditions of real-time monitoring electrical equipment 201
The real-time voltage information of electrical equipment 201, when electrical equipment 201 is operating abnormally, (such as working voltage shakiness or working voltage
It is excessively high/too low), voltage monitoring instrument 203 monitors the address information and exception information of electrical equipment 201.
The exception information of 210 real-time display electrical equipment 201 of display unit, alarm unit 212 is according to electrical equipment 201
Its corresponding alarm lamp of address information is bright, prompts staff that scene is gone to carry out overhaul of the equipments in time.
Electricity consumption monitoring device 204 is connect with electrical equipment 201 and display unit 210 respectively, electricity consumption monitoring device
204 can be monitored in real time the electricity consumption information of electrical equipment 201, and be shown by display unit 210, and staff is facilitated to look into
It sees.
Equipment management circuit 205 is connected with electrical equipment 201 and data entry element 211 respectively, sets for controlling electricity consumption
The disconnection and connection status of standby 201 circuits.Device management unit 205 includes triode and relay, the collector of triode
Power supply is coupled, the emitter of triode couples relay, and the contact of relay is connected with electrical equipment；The triode is NPN type
Triode plays the role of switching device herein, and triode is provided with multiple, to be each separately controlled electrical equipments
201 respectively correspond a triode to control its opening and closing.When needing to open some electrical equipment 201, to corresponding triode
High level signal is issued, make triode ON corresponding to the electrical equipment 201, relay coil obtains electric, while relay
Contact closure achievees the effect that remote control of electrical equipment opens or closes.
Specifically, when the circuitry that equipment management circuit 205 receives 211 typing of data entry element disconnects and connects
Time after, electrical equipment 201 is monitored, disconnects when a certain electrical equipment 201 is in circuit or when the Connection Time, is
The circuit of the electrical equipment is disconnected or is connected by system, controls the operation and stopping of equipment, so that using energy source maximizes, Yong Human
Meaning maximizes.For example, the turn-off time of a certain electrical equipment typing is 23 points, 23 points of daily electrical equipments can all close automatically
It closes, never avoids employee and come off duty and forget waste of energy caused by closing electrical equipment.
Display unit 210 includes LED display, is supervised respectively with electric leakage monitor 202, voltage monitoring instrument 203, electricity consumption
It surveys device 204 to be connected with storage unit 213, for showing electric leakage data, the voltage monitoring instrument of the electric leakage transmission of monitor 202
The exception information of 203 transmission, the electricity consumption information of the transmission of electricity consumption monitoring device 204 simultaneously extremely store the data transmission of display
Unit 213 carries out real-time storage.
The various information datas that display unit 210 can be received with real-time display, make staff in office
The working condition for monitoring electrical equipment 201 and wiring circuit 200 in real time, when occurring abnormal, staff can make phase as early as possible
The safeguard procedures answered.
Data entry element 211 and equipment management circuit connection；For the electric leakage threshold value of typing electrical equipment 201, electricity consumption
The disconnection of circuitry and Connection Time.
Staff can directly pass through management end in office, be managed, directly enter to the equipment in whole building
Various parameters, system can carry out controlling operation accordingly according to the parameter of typing, so that whole system is more intelligent, and save
A large amount of human cost, avoids staff from going around the building Zheng Dong and controls each equipment one by one.
Alarm unit 212, including：Route early-warning lamp 2121 and equipment alarm lamp 2122, wherein：
Route early-warning lamp 2121 is connected with electric leakage monitor 202, receives what electric leakage monitor 202 transmitted for working as
When the address information of distribution line 200, the route early-warning lamp 2121 of corresponding distribution line 200 is bright.
Equipment alarm lamp 2122 is connected with voltage monitoring instrument 203, receives the transmission of voltage monitoring instrument 203 for working as
When the address information of electrical equipment, the equipment alarm lamp 2122 of corresponding electrical equipment is bright.
Alarm unit 212 provides alarm signal according to the information received in time, and staff is prompted to be examined accordingly
Work is repaired, the address information for not finding to receive in time temporarily away from office because of staff is avoided.
Embodiment 2：
As shown in Fig. 2, intelligent building total management system, is connected with distribution line 200 and electrical equipment 201, including
Leak electricity monitor 202, voltage monitoring instrument 203, electricity consumption monitoring device 204 and equipment management circuit 205；Processing unit is (in figure
Be not shown), display unit 210, data entry element 211 and alarm unit 212；
Wherein：Electric leakage monitor 202 include current transformer, microprocessor, input/output interface, power interface and
Communication interface, current transformer, input/output interface, power interface and communication interface are connected with the microprocessor respectively；Leakage
Pyroelectric monitor instrument 202 can to the drain conditions of distribution line 200 carry out real-time monitoring, when 200 electrical leakage quantity of distribution line be greater than etc.
In leak electricity threshold value when, electric leakage monitor 202 by the address information of distribution line 200 and electric leakage data send.
Specifically, the drain conditions of distribution line 200, system are set everywhere in electric leakage 202 real-time monitoring building of monitor
The electric leakage threshold value of fixed each distribution line 200, when the electrical leakage quantity of the distribution line 200 monitored is more than or equal to the correspondence of system setting
When the electric leakage threshold value of distribution line 200, electric leakage monitor 202 records the address information of distribution line 200 at this time and electric leakage numerical value.
Voltage monitoring instrument 203 is connect with electrical equipment 201, for the operation conditions of real-time monitoring electrical equipment 201, specifically monitors electricity consumption
The real-time voltage information of equipment, when electrical equipment 201 is operating abnormally, (such as working voltage is unstable or working voltage it is excessively high/mistake
It is low), the address information of electrical equipment 201 and exception information are monitored to obtain by monitoring of tools unit 203.
The exception information of 212 real-time display electrical equipment of display unit, alarm unit is according to the address information of electrical equipment
Its corresponding alarm lamp is bright, prompts staff that scene is gone to carry out overhaul of the equipments in time.
Electricity consumption monitoring device 204 is connect with electrical equipment 201 and display unit 210 respectively, electricity consumption monitoring device
204 can be monitored in real time the electricity consumption information of electrical equipment 201, and be shown by display unit 210, and staff is facilitated to look into
It sees.
Equipment management circuit 205 is connected, for controlling electricity consumption respectively with electrical equipment 201 and data entry element 211
The disconnection and connection status of 201 circuit of equipment.Device management unit 205 includes triode and relay, the current collection of triode
Pole couples power supply, and the emitter of triode couples relay, and the contact of relay is connected with electrical equipment；The triode is NPN
Type triode plays the role of switching device herein, and triode is provided with multiple, to be each separately controlled electrical equipments
201 respectively correspond a triode to control its opening and closing.When needing to open some electrical equipment 201, to corresponding triode
High level signal is issued, make triode ON corresponding to the electrical equipment 201, relay coil obtains electric, while relay
Contact closure achievees the effect that remote control of electrical equipment opens or closes.
Specifically, when the circuitry that equipment management circuit 205 receives 211 typing of data entry element disconnects and connects
Time after, electrical equipment is monitored, is disconnected or when the Connection Time when a certain electrical equipment is in circuit, system is by the use
The circuit of electric equipment disconnects or connection, controls the operation and stopping of equipment, so that using energy source maximizes, user is satisfied maximum
Change.For example, the turn-off time of a certain electrical equipment typing is 23 points, 23 points of daily electrical equipments can be all automatically closed, from
Employee is not avoided and is come off duty forgets waste of energy caused by closing electrical equipment.
Display unit 210 includes LED display, is supervised respectively with electric leakage monitor 202, voltage monitoring instrument 203, electricity consumption
It surveys device 204 to be connected with storage unit 213, for showing electric leakage data, the voltage monitoring instrument of the electric leakage transmission of monitor 202
The exception information of 203 transmission, the electricity consumption information of the transmission of electricity consumption monitoring device 204 simultaneously extremely store the data transmission of display
Unit 213 carries out real-time storage.
The various information datas that display unit 210 can be received with real-time display, make staff in office
The working condition for monitoring electrical equipment and wiring circuit in real time, when occurring abnormal, staff can make corresponding anti-as early as possible
Shield measure.
Data entry element 211 is connected with electric leakage monitor 202 and equipment management circuit 205 respectively；It is used for typing
The electric leakage threshold value of electric equipment, the disconnection of electrical equipment circuit and Connection Time.
Staff can directly pass through management end in office, be managed, directly enter to the equipment in whole building
Various parameters, system can carry out controlling operation accordingly according to the parameter of typing, so that whole system is more intelligent, and save
A large amount of human cost, avoids staff from going around the building Zheng Dong and controls each equipment one by one.
Alarm unit 212, including：Route early-warning lamp 2121, equipment alarm lamp 2122 and GSM communication interface 208,
In：Route early-warning lamp 2121 is connected with electric leakage monitor 202, for when the address letter for receiving the electric leakage transmission of monitor 202
When breath, the route early-warning lamp 2121 of corresponding distribution line 200 is bright.
Equipment alarm lamp 2122 is connected with voltage monitoring instrument 203, receives the transmission of voltage monitoring instrument 203 for working as
When the address information of electrical equipment, the equipment alarm lamp 2122 of corresponding electrical equipment is bright.
Alarm unit 212 provides alarm signal according to the information received in time, and staff is prompted to be examined accordingly
Work is repaired, the address information for not finding to receive in time temporarily away from office because of staff is avoided.
GSM communication interface 208 is connect with alarm unit 212, receiving number editing system, work built in GSM communication interface 208
Reception phone number can be increased in receiving number editing system by host computer or modify by making personnel.When alarm unit 212
When receiving alarm signal, alarm unit 212 sends alarm signal to the mobile phone of staff by way of short message, avoids
Because staff temporarily cannot not timely receive warning message.
Storage unit 213 is connected with display unit 210, and storage unit 213 is FLASH memory, single for that will show
The data of 210 display of member carry out real-time storage.Checking and transferring convenient for later data.
Further, which further includes having the data transmission unit 206 connecting with storage unit 213 and data receiver
Unit 207, the setting of data receipt unit 207 is in control centre, the corresponding multiple data transmission units of a data receipt unit 207
206.Data transmission unit 206 is used to the data that the voltage monitoring instrument, electricity consumption monitoring device detect being sent to master control
There is data sink 206 in room in master control room, staff is allow to receive the monitoring information of multiple building simultaneously, convenient
Management.
By above each embodiment it is found that the intelligent building total management system of the utility model, existing beneficial to effect
Fruit is：
(1) the intelligent building total management system of the utility model, by electrical equipment and distribution line in building
Real time monitoring feeds back corresponding alarm signal to management system in time, makes work people when there is unit exception, aging circuit
Member can note abnormalities problem in time in office, reduce workload and cost of labor, at the same avoid because monitor it is improper go out
Existing leakage fire and equipment fault solves the problems, such as not in time, provides safety, comfortable environment to the greatest extent for user.
(2) the intelligent building total management system of the utility model, according to the service condition of each electrical equipment, intelligent control
The disconnection and connection status of electricity consumption distribution line, avoid when not in use, and electrical equipment still in continuous running, makes whole building
Power consumption is excessively high, waste of energy.Staff also can according to the disconnection of history electricity consumption report routine adjustment electricity distribution line and
Connection Time, so that using energy source maximizes, user is satisfied to be maximized.
Although being described in detail by some specific embodiments of the example to the utility model, this field
It is to be understood by the skilled artisans that example above merely to be illustrated, rather than in order to limit the scope of the utility model.This
Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case where, to above embodiments
It modifies.The scope of the utility model is defined by the following claims.
Claims (5)
1. a kind of intelligent building total management system, is connected with distribution line and electrical equipment, which is characterized in that including：
Leak electricity monitor, and the electric leakage monitor includes current transformer, microprocessor, input/output interface, power interface
And communication interface, the current transformer, the input/output interface, the power interface and communication interface difference
It is connected with the microprocessor；
Voltage monitoring instrument, the voltage monitoring instrument are connected with the electrical equipment；
Electricity consumption monitoring device, the electricity consumption monitoring device are connected with the electrical equipment；
Equipment management circuit, the equipment management circuit include triode and relay, the collector coupling of the triode
The emitter of power supply, the triode couples the relay, and the contact of the relay is connected with the electrical equipment；
Processing unit, display unit, data entry element and alarm unit, wherein the processing unit respectively with the electric leakage
Monitor, the voltage monitoring instrument, the electricity consumption monitoring device are connected with the equipment management circuit, the display unit
Including LED display, the display unit, the data entry element and the alarm unit respectively with the processing unit phase
Connection, the alarm unit, including route early-warning lamp and equipment alarm lamp.
2. intelligent building total management system according to claim 1, which is characterized in that further include：Storage unit, it is described
Storage unit is connected with the display unit, and the storage unit is FLASH memory.
3. intelligent building total management system according to claim 2, which is characterized in that further include having and the storage list
The data transmission unit and data receipt unit, one data receipt unit of member connection correspond to multiple data transmission units.
4. intelligent building total management system according to claim 2, which is characterized in that the data entry element, into
One step, including：Electric leakage threshold value typing end and circuit disconnect time typing end, wherein：
Electric leakage threshold value typing end is connected with the electric leakage monitor, and the electric leakage threshold value typing end is the first host computer；
The circuit disconnects time typing end, is connected with the processing unit, and the circuit disconnects time typing
End is the second host computer.
5. intelligent building total management system according to claim 2, which is characterized in that the alarm unit further includes
GSM communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820726738.XU CN208158236U (en) | 2018-05-16 | 2018-05-16 | Intelligent building total management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820726738.XU CN208158236U (en) | 2018-05-16 | 2018-05-16 | Intelligent building total management system |
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| Publication Number | Publication Date |
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| CN208158236U true CN208158236U (en) | 2018-11-27 |
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ID=64387587
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820726738.XU Active CN208158236U (en) | 2018-05-16 | 2018-05-16 | Intelligent building total management system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111882845A (en) * | 2020-07-29 | 2020-11-03 | 杭州后博科技有限公司 | Method and system for identifying and protecting potential safety hazards of electric leakage |
-
2018
- 2018-05-16 CN CN201820726738.XU patent/CN208158236U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111882845A (en) * | 2020-07-29 | 2020-11-03 | 杭州后博科技有限公司 | Method and system for identifying and protecting potential safety hazards of electric leakage |
| CN111882845B (en) * | 2020-07-29 | 2022-09-16 | 杭州后博科技有限公司 | Method and system for identifying and protecting potential safety hazards of electric leakage |
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