CN105621186B - A kind of elevator safety system of elevator maintenance device and the application device - Google Patents
A kind of elevator safety system of elevator maintenance device and the application device Download PDFInfo
- Publication number
- CN105621186B CN105621186B CN201610153864.6A CN201610153864A CN105621186B CN 105621186 B CN105621186 B CN 105621186B CN 201610153864 A CN201610153864 A CN 201610153864A CN 105621186 B CN105621186 B CN 105621186B
- Authority
- CN
- China
- Prior art keywords
- elevator
- maintenance device
- module
- circuit
- elevator maintenance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0025—Devices monitoring the operating condition of the elevator system for maintenance or repair
Landscapes
- Indicating And Signalling Devices For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses the elevator safety systems of a kind of elevator maintenance device and the application device, the device has multiple test sides, the test point of the different circuit of each test side access elevator-mainboard sends out alarm signal to detect the voltage in the circuit of elevator-mainboard during primary Ioops electric voltage exception in office.In addition the elevator safety system being made of the maintenance device, when trapped person presses the call button in car, intercom system dials preset number successively, and trapped person is enable to get in touch with the external world in time, conducive to rescue trapped person.
Description
Technical field
The present invention relates to elevator technology field, more specifically, it relates to a kind of elevator maintenance device and apply the device
Elevator safety system.
Background technology
With the quickening of Urbanization Construction paces, land resource is increasingly rare, and modern architecture is more and more sent out to space
Exhibition, elevator are increased every year with the quantity for being up to 20%, and to ensure lift running safety, it is regular to elevator to need to arrange for maintenance staff
Inspection and maintenance.And the present situation in elevator maintenance field is the increase that the increase of maintenance staff's number does not catch up with elevator quantity much, this is just
Cause maintenance department that cannot know the operation conditions of some elevators in time, there are security risks.So in recent years, because of elevator faults
And the situation that trapped person can not contact with the external world happens occasionally.Therefore, know in time every elevator operation conditions and
It is the key that ensure people's life security that trapped person is enable to get in touch with the external world during elevator faults.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of elevator maintenance device and apply the dress
The elevator safety system put.
To achieve the above object, the present invention provides following technical solutions：
A kind of elevator maintenance device, including：
Detection module, has multiple test sides, and the test point of the different circuit of elevator-mainboard is accessed to examine in each test side
The voltage in the circuit of elevator-mainboard is surveyed, and feedback signal is sent out during primary Ioops electric voltage exception in office；
Main control module in response to the feedback signal and generates alarm signal；
Gsm module, for sending out the alarm signal.
Preferably, the Elevator maintenance system further includes：
Memory module, for storing several telephone numbers；
First trigger module is controlled by human hand and sends out the first trigger signal, and main control module is believed in response to the described first triggering
Number and pass through gsm module and dial the telephone number stored in memory module successively, until some telephone number is put through.
Preferably：The elevator maintenance device further includes the second trigger module, be controlled by human hand send out second touch
It signals, main control module is in response to second trigger signal and stops generating alarm signal.
Preferably：The elevator maintenance device further includes shroud module, and the shroud module is used to shield elevator
The interference information of number other than the telephone number of maintenance device storage.
Preferably：The alarm signal includes the fault type of elevator.
It is another object of the present invention to provide a kind of elevator safety system, trapped person can utilize the intercom system
It gets in touch in time with the external world.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of elevator safety system：Elevator maintenance device, computer room phone, car top communication, car communication and car floor are led to
Device is talked about, the computer room phone, car top communication, car communication and car floor communication are connect with elevator maintenance device, described
Elevator maintenance device is connect with cloud server.
Preferably：The call button being connect with car communication is equipped in car.
Preferably：The elevator safety system further includes ups power.
Compared with prior art, it is an advantage of the invention that：Each road that this elevator maintenance device can detect elevator-mainboard is defeated
Have voltage and in elevator-mainboard failure to the fault loop serial number of high in the clouds reporting fault elevator-mainboard, enable maintenance department and
When know the information of failure elevator, and elevator maintenance device can send out the short message of report elevator faults convenient for pipe to administrative staff
Reason；In addition the elevator intercom system being made of the elevator maintenance device is right when trapped person presses the call button in car
The system of saying can dial preset number successively, when trapped person can get in touch with administrative staff in time, conducive to rescue trapped person.
Description of the drawings
Fig. 1 is the circuit diagram of the detection module of elevator maintenance device；
Fig. 2 is the circuit diagram of the main control module of elevator maintenance device；
Fig. 3 is the circuit diagram of the gsm module of elevator maintenance device；
Fig. 4 is the peripheral circuit of the gsm module of elevator maintenance device；
Fig. 5 and Fig. 6 is the circuit diagram of the debugging module of elevator maintenance device；
Fig. 7 is the circuit diagram of the signal processing module of elevator maintenance device；
Fig. 8 is the circuit diagram of the memory modules of elevator maintenance device；
Fig. 9 is the circuit diagram of the power module of elevator maintenance device；
Figure 10 is the circuit diagram of the execution module of elevator maintenance device
Figure 11 is the circuit diagram of the interface module of elevator maintenance device；
Figure 12 is the connection diagram of elevator safety system.
Specific embodiment
Embodiment one
With reference to Fig. 1, the detection module of elevator maintenance device includes the test point in each circuit of multiple detection elevator-mainboards
The test side of voltage, the object of detection have safety return circuit, loop of the door lock, brake loop etc..The mode of detection can detect certain
The input voltage of the relay for outputting and inputting voltage or directly detecting the circuit of primary Ioops.It is employed more in the present embodiment
A kind of direct simpler detection mode.In fact, the operating voltage of the relay on elevator-mainboard generally has 110V and 24V
Two kinds, the detection circuit of detection module also has high-voltage detecting circuit low-voltage testing circuit.Wherein high-voltage detecting circuit（On the right side of Fig. 1
Shown circuit）Including rectification circuit and optical coupling isolation circuit, the output terminal of rectification circuit is connect with optical coupling isolation circuit input terminal,
The opto-coupler chip model PC817S that the optical coupling isolation circuit of high-voltage detecting circuit is used, the output terminal of optical coupling isolation circuit and three
Pole pipe Q15 connections.And low-voltage testing circuit（Circuit shown on the left of Fig. 1）It is made of optical coupling isolation circuit and triode Q13.Optocoupler
Isolation circuit can make detection circuit protect against moment big voltage, high current damage.By taking low-voltage testing circuit as an example：
During the circuit normal work of elevator-mainboard, the voltage on relay in the circuit is in normal range (NR), and triode Q13 is closed
It is disconnected；And when the component damage in circuit, the output voltage in circuit is beyond normal range (NR), at this time triode Q13 conductings, low pressure
The output terminal OUTL4 of detection circuit exports a low level signal.
With reference to Fig. 2, the main control chip that the main control module of elevator maintenance device uses is STM32F103RBT6, main control chip
Including three groups of I/O pins：PA0-PA15、PB0-PB15、PC0-PC15.The output terminal of the low-voltage testing circuit of detection module
The PC6 pins of OUTL4 and main control chip connect, and the output terminal OUTH1 and main control chip of the high-voltage detecting circuit of module are surveyed in school
PB6 pins connection.The communication module of main control module carries out serial communication by UART interface and extraneous server.Main control chip
Each input pin be defined, for example a certain pin is connect with the voltage detecting circuit in detection elevator internal contracting brake circuit, then when
When there is level signal input in the circuit, represent " band-type brake failure ".When PC6 input low levels signal or PB6 input high levels are believed
Number when, main control module generation communication module can be communicated with server, the serial number of fault loop is reported into server, tie up
The type of elevator faults and failure can just be known in time in guarantor department, counter-measure to be taken to prevent trouble before it happens, reduce elevator peace
The possibility that full accident occurs.
With reference to Fig. 2 and Fig. 3, the chip that the gsm module of elevator maintenance device uses for MG2639, draw by the output of main control chip
Foot PB10 is connect with the input pin 43 of GSM chips, and the output pin 44 of the input pin PB11 of main control chip and GSM chips
Connection.When a certain loop fault of elevator-mainboard, main control module generates the alarm signal in the circuit and passes through gsm module and sends out
It is loaded with the alarm signal（Such as：" safety return circuit failure ", " loop of the door lock failure ", " band-type brake failure " etc.）Short message radio frequency letter
Number, extraneous mobile phone or base are with regard to that can receive short message.
For the gsm module that this elevator maintenance device uses for card insert type function module, gsm module includes SIM card deck.Only
It, could receiving and transmitting signal when gsm module inserts SIM card.Such as Fig. 4, protected between SIM card deck and GSM chips by SIM electrostatic
Protection circuit connects.Wherein, No. 1 pin of SIM card deck is connect with No. 5 pins of SIM electrostatic discharge protective circuits, for SIM card card
The power supply of seat；No. 2 pins of SIM card deck are connect with No. 1 pin of SIM electrostatic discharge protective circuits, are used for transmission nSIM_RST letters
Number --- i.e. reset signal；No. 3 pins of SIM card deck and No. 6 pins of electrostatic discharge protective circuit connect, and are used for transmission SIM_
CLK signal --- i.e. clock signal；No. 7 pins of SIM card deck are directly connect with No. 13 pins of GSM chips, are used for transmission
Data.SIM electrostatic discharge protective circuits can protect GSM chips, moreover it is possible to shield external interference signal.
Fig. 5 and Fig. 6 is the circuit diagram of the debugging module of elevator maintenance device.Debugging module includes serial interface switching circuit, string
Mouth conversion circuit uses SP3232 serial ports conversion chips.The input terminal of serial interface switching circuit --- No. 12 pins and main control chip
No. 43 pin connections, and No. 42 pins of the output terminal of serial interface switching circuit and main control chip connect.Serial interface switching circuit is external
The communication interface of portion's equipment is converted, and the versatility for making elevator maintenance device is higher, is realized and is communicated between multimachine.It adjusts
Die trial block further includes and draws debugging module, external debugging module is repair key-press module.It is to be noted that：For maintaining easily
The purpose of elevator when repairing elevator, occurs causing relay working voltage on elevator-mainboard abnormal because of repair
During situation, elevator maintenance device will not send out alarming short message.The device is equipped with repair button, referring to Fig. 6, button SW1 and master
No. 24 pins connection of chip is controlled, when maintenance personal presses lower button SW1, No. 24 pins of main control chip input a level letter
Number, the device of elevator maintenance at this time enters maintenance state, if occurring at this time caused by the operation of maintenance personal on elevator-mainboard
Relay voltage is abnormal, then elevator maintenance device will not send out alarming short message, but report electricity to server by UART interface
Ladder is in maintenance state.
This elevator maintenance device further includes recording module, and recording module uses Y standard stereophonic recordings.The processing electricity of signal
Road includes audio Y-signal processing circuit and transmission/received signal level processing circuit with reference to Fig. 7, signal processing module.Wherein,
Audio Y-signal processing circuit includes TPA6211A1DGN processing chips and transformer T1, No. 4 pins and the GSM moulds of processing chip
No. 32 pins connection of block.The effect of the partial circuit is amplification audio signal.Send the input terminal of signal level processing circuit
It is connect with No. 30 pins of main control chip, and No. 30 pins of output terminal and GSM chips for sending signal level processing circuit connect
It connects.The input terminal of received signal level processing circuit is connect with No. 29 pins of GSM chips, and received signal level processing circuit
Output terminal and main control chip No. 29 pins connect.It sends signal level processing circuit and receives signal level processing circuit
Effect is the signal amplified between main control chip and GSM chips.
Fig. 8 is the circuit diagram of the memory modules of elevator maintenance device.Multiple phones are stored in the memory modules of the present apparatus
Number, memory modules use electrically erasable programmable read-only memory（EEPROM）, ensure that number will not be lost after device power down
According to.The chip model of EEPROM is AT24C016, and No. 7 pins --- i.e. No. 59 pins of write-protect pin and main control chip connect
It connects.And the FLASH flash memories form of memory modules is SPI_FLASH, FLASH chip W25Q16, No. 1 of FLASH chip draws
Foot --- the i.e. No. 20 pins connection of piece type selecting pin and main control chip；Its No. 2 pins --- i.e. data-out pin and master
Control the 22 pins connection of chip；Its No. 6 pins --- i.e. No. 21 pins of Clock Signal pin and main control chip are connect；Its No. 5 are drawn
Foot --- the i.e. No. 23 pins connection of data output pins and main control chip.
Embodiment two
With reference to Figure 12, a kind of elevator safety system.Connect including elevator maintenance device, set on car and with elevator maintenance device
The car communication that connects, the car top communication being connect set on car top and with elevator maintenance device, set on car floor and with elevator maintenance
The car floor communication of device connection and the computer room phone being connect with elevator maintenance device.Elevator maintenance in each car is filled
It puts after networking with cloud server, in elevator faults, the fault message of elevator can be uploaded to cloud service by elevator maintenance device
Device can be achieved with the function that maintenance department monitors multiple residential elevators.Elevator maintenance device and duty room base or operator on duty
Mobile phone is with GSM network（Utilize the gsm module of the present apparatus）Realize communication.Computer room phone, car top communication, car communication and
Five side's telephony interfaces that car floor communication passes through elevator maintenance device（See Figure 11）It is connect with elevator maintenance device.Car phone with
Car communication connects, and the call button being connect with car communication is additionally provided in car.Computer room phone, car top communication,
Car floor communication and car communication can directly converse mutually and four also can by the gsm module of elevator maintenance device with it is on duty
Personnel, talking, in addition, third party or more sides can add in call when two sides converse.When elevator faults, in car
Trapped person's pressable call button, after trapped person's call button is pressed, car communication is sent out to elevator maintenance device
Instruction is called for help, elevator maintenance device dials multiple telephone numbers of its storage successively, until connecting a number, is connecting phone
The preceding cancel button for pressing elevator maintenance device cancels calling.The telephone number being prestored into elevator maintenance device can be more
Change, it can also typing voice messaging in elevator maintenance device.
In addition, the reliability to ensure elevator safety system, this system configuration large-capacity ups power supply.Ups power directly to
Elevator maintenance device, computer room phone, car top communication, car communication and the power supply of car floor communication.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of elevator maintenance device, it is characterized in that, including：
Detection module, has multiple test sides, and the test point of the different circuit of elevator-mainboard is accessed to detect electricity in each test side
The voltage in the circuit of terraced mainboard, and feedback signal is sent out during primary Ioops electric voltage exception in office, detection module includes high pressure detection electricity
Road and low-voltage testing circuit, wherein, the high-voltage detecting circuit includes rectification circuit, the first optical coupling isolation circuit and the one or three pole
Pipe, the output terminal of rectification circuit connect with the first optical coupling isolation circuit input terminal, the output terminal of the first optical coupling isolation circuit and the
The control terminal connection of one triode, the feedback signal output of the first triode are connected with main control module, the low pressure detection electricity
Road includes the second optical coupling isolation circuit and the second triode, the control of the output terminal of the second optical coupling isolation circuit and the second triode
End is connected, and the feedback signal output of the second triode is connected with main control module；
Main control module in response to the feedback signal and generates alarm signal；
Gsm module, for sending out the alarm signal.
2. elevator maintenance device according to claim 1, it is characterized in that, the elevator maintenance device further includes：
Memory module, for storing several telephone numbers；
First trigger module is controlled by human hand and sends out the first trigger signal, main control module in response to first trigger signal simultaneously
The telephone number stored in memory module is dialed successively by gsm module, until some telephone number is put through；
Gsm module includes SIM card deck and GSM chips, passes through SIM electrostatic protections electricity between the SIM card deck and GSM chips
Road connects.
3. elevator maintenance device according to claim 2, it is characterized in that：The elevator maintenance device further includes the second triggering
Module is controlled by human hand and sends out the second trigger signal, and main control module is in response to second trigger signal and stops generation alarm
Signal.
4. elevator maintenance device according to claim 2, it is characterized in that：The elevator maintenance device further includes shielding mould
Block, the shroud module are used for the interference information of the number other than the telephone number for shielding the storage of elevator maintenance device.
5. elevator maintenance device according to claim 1, it is characterized in that：The alarm signal includes the failure classes of elevator
Type.
6. a kind of elevator safety system, it is characterized in that：Including elevator maintenance device as described in claim 1, computer room phone, sedan-chair
Push up communication, car communication and car floor communication, the computer room phone, car top communication, car communication and car floor call
Device is connect with elevator maintenance device, and the elevator maintenance device is connect with cloud server.
7. elevator safety system according to claim 6, it is characterized in that：It is equipped with what is connect with car communication in car
Call button.
8. elevator safety system according to claim 6, it is characterized in that：The elevator safety system further includes ups power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610153864.6A CN105621186B (en) | 2016-03-17 | 2016-03-17 | A kind of elevator safety system of elevator maintenance device and the application device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610153864.6A CN105621186B (en) | 2016-03-17 | 2016-03-17 | A kind of elevator safety system of elevator maintenance device and the application device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105621186A CN105621186A (en) | 2016-06-01 |
| CN105621186B true CN105621186B (en) | 2018-06-29 |
Family
ID=56036598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610153864.6A Active CN105621186B (en) | 2016-03-17 | 2016-03-17 | A kind of elevator safety system of elevator maintenance device and the application device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105621186B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110113079B (en) * | 2019-05-29 | 2024-04-26 | 南京市特种设备安全监督检验研究院 | Elevator emergency call system and control method |
| CN112995178B (en) * | 2021-02-25 | 2023-04-25 | 上海吉盛网络技术有限公司 | Elevator multiparty call device with remote callback function |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1498842A (en) * | 2002-10-29 | 2004-05-26 | �����ذ¹ɷݹ�˾ | Device and method for remote maintaining elevator |
| CN202107394U (en) * | 2011-05-04 | 2012-01-11 | 山东科技大学 | Electronic safety protection device of lifter |
| CN102659005A (en) * | 2012-05-12 | 2012-09-12 | 博朗电梯(漳州)有限公司 | Elevator intelligent remote alarm system |
| CN202464972U (en) * | 2011-12-21 | 2012-10-03 | 宁波波峰电子有限公司 | Point detection box |
| CN102761569A (en) * | 2011-04-28 | 2012-10-31 | 上海韦铫机电设备有限公司 | RFID (radio frequency identification) maintenance management system for intelligent elevator terminal network of things |
| CN102756956A (en) * | 2011-04-28 | 2012-10-31 | 上海市特种设备监督检验技术研究院 | Elevator incident early-warning emergency support system |
| CN203959572U (en) * | 2014-05-28 | 2014-11-26 | 重庆迈高电梯有限公司 | Elevator door lock disconnects automatic checkout equipment |
| CN104261214A (en) * | 2014-09-16 | 2015-01-07 | 苏州大学张家港工业技术研究院 | Remote fault detection method for elevator |
| CN105236251A (en) * | 2015-11-23 | 2016-01-13 | 黄一宸 | Fault detection device and method for door interlock circuit/safety circuit of elevator |
| CN205419372U (en) * | 2016-03-17 | 2016-08-03 | 杭州高城科技有限公司 | Elevator dimension is protected device and is used device's elevator safety coefficient |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5190210B2 (en) * | 2007-03-19 | 2013-04-24 | 東芝エレベータ株式会社 | Elevator maintenance management system |
| JP5332805B2 (en) * | 2009-03-30 | 2013-11-06 | 三菱電機ビルテクノサービス株式会社 | Elevator maintenance system |
-
2016
- 2016-03-17 CN CN201610153864.6A patent/CN105621186B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1498842A (en) * | 2002-10-29 | 2004-05-26 | �����ذ¹ɷݹ�˾ | Device and method for remote maintaining elevator |
| CN102761569A (en) * | 2011-04-28 | 2012-10-31 | 上海韦铫机电设备有限公司 | RFID (radio frequency identification) maintenance management system for intelligent elevator terminal network of things |
| CN102756956A (en) * | 2011-04-28 | 2012-10-31 | 上海市特种设备监督检验技术研究院 | Elevator incident early-warning emergency support system |
| CN202107394U (en) * | 2011-05-04 | 2012-01-11 | 山东科技大学 | Electronic safety protection device of lifter |
| CN202464972U (en) * | 2011-12-21 | 2012-10-03 | 宁波波峰电子有限公司 | Point detection box |
| CN102659005A (en) * | 2012-05-12 | 2012-09-12 | 博朗电梯(漳州)有限公司 | Elevator intelligent remote alarm system |
| CN203959572U (en) * | 2014-05-28 | 2014-11-26 | 重庆迈高电梯有限公司 | Elevator door lock disconnects automatic checkout equipment |
| CN104261214A (en) * | 2014-09-16 | 2015-01-07 | 苏州大学张家港工业技术研究院 | Remote fault detection method for elevator |
| CN105236251A (en) * | 2015-11-23 | 2016-01-13 | 黄一宸 | Fault detection device and method for door interlock circuit/safety circuit of elevator |
| CN205419372U (en) * | 2016-03-17 | 2016-08-03 | 杭州高城科技有限公司 | Elevator dimension is protected device and is used device's elevator safety coefficient |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105621186A (en) | 2016-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105621186B (en) | A kind of elevator safety system of elevator maintenance device and the application device | |
| CN208861353U (en) | A kind of self feed back access control system | |
| CN206407778U (en) | Elevator rescue system | |
| CN201708589U (en) | Power safety protective system | |
| CN205419372U (en) | Elevator dimension is protected device and is used device's elevator safety coefficient | |
| CN206850931U (en) | Mining broadcast communication video monitoring system | |
| CN107093888A (en) | Automatic reclosing protection switch with fire alarm defencive function | |
| CN209177789U (en) | Autonomous rescue alarm terminal | |
| CN107621563A (en) | A kind of Multifunctional electric meter case of integrated multiple faults monitoring | |
| CN205792556U (en) | A kind of mine optical fiber digital telephone and emergency communication system | |
| CN201842227U (en) | Connection method for ship engine room alarm device | |
| CN204454114U (en) | A kind of wireless intercom device with monitoring function | |
| CN104732625A (en) | Method and device for unlocking key management box on basis of fingerprint identification technology | |
| CN211393442U (en) | Call integrator and elevator rescue system | |
| CN207750107U (en) | Can emergency stop detection and localization immediately coal mine KTC118 communication control units | |
| CN108275547A (en) | A kind of elevator emergency communications management system and method | |
| CN206907179U (en) | Fire alarm automatically powers off remote alarming device | |
| CN208829053U (en) | A kind of elevator emergency device | |
| CN203021133U (en) | Elevator wireless intelligent multi-party verbal system | |
| CN106300664A (en) | A kind of distribution substation grid switching operation monitoring system | |
| CN211254858U (en) | Remote monitoring intercom system | |
| CN205263982U (en) | Cable burglar alarm | |
| CN205179179U (en) | Can fix a position circuit of ticket distributing position ringing current puncture trouble | |
| CN205450071U (en) | Electricity stealing monitoring device for a communication machine room | |
| CN208189003U (en) | A kind of fire-fighting display device of floor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160802 Address after: 311199 A block 1, 326 South Street, Nanyuan street, Yuhang District, Zhejiang, Hangzhou, 411-1 Applicant after: Hangzhou auspicious Language Technology Co. Ltd. Address before: 311199, A, room 606-611, building 1, Times Square, 326 South Street, Nanyuan street, Yuhang District, Zhejiang, Hangzhou Applicant before: HANGZHOU GAOCHENG TECHNOLOGY CO., LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |