CN107918967A - A kind of campus dormitory access control system gathered based on radio frequency induction and face - Google Patents
A kind of campus dormitory access control system gathered based on radio frequency induction and face Download PDFInfo
- Publication number
- CN107918967A CN107918967A CN201711259087.4A CN201711259087A CN107918967A CN 107918967 A CN107918967 A CN 107918967A CN 201711259087 A CN201711259087 A CN 201711259087A CN 107918967 A CN107918967 A CN 107918967A
- Authority
- CN
- China
- Prior art keywords
- dormitory
- module
- access control
- radio
- campus
- 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.)
- Pending
Links
- 230000006698 induction Effects 0.000 title claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 31
- 238000012544 monitoring process Methods 0.000 claims abstract description 31
- 230000005764 inhibitory process Effects 0.000 claims abstract description 30
- 230000001815 facial effect Effects 0.000 claims description 8
- 238000004321 preservation Methods 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
- G07C9/22—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder
- G07C9/25—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder using biometric data, e.g. fingerprints, iris scans or voice recognition
- G07C9/257—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder using biometric data, e.g. fingerprints, iris scans or voice recognition electronically
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/10—Services
- G06Q50/20—Education
- G06Q50/205—Education administration or guidance
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
- G07C9/22—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder
- G07C9/25—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder using biometric data, e.g. fingerprints, iris scans or voice recognition
- G07C9/26—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder using biometric data, e.g. fingerprints, iris scans or voice recognition using a biometric sensor integrated in the pass
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
- G07C9/27—Individual registration on entry or exit involving the use of a pass with central registration
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- General Health & Medical Sciences (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Strategic Management (AREA)
- Tourism & Hospitality (AREA)
- Health & Medical Sciences (AREA)
- Economics (AREA)
- Human Resources & Organizations (AREA)
- Marketing (AREA)
- Primary Health Care (AREA)
- General Business, Economics & Management (AREA)
- Theoretical Computer Science (AREA)
- Computing Systems (AREA)
- Medical Informatics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Alarm Systems (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
Abstract
The invention discloses a kind of campus dormitory access control system gathered based on radio frequency induction and face, including mobile terminal, dormitory gate inhibition monitoring center and the monitoring node at each dormitory gate in campus;The mobile terminal is connected by wireless network with dormitory gate inhibition's monitoring center;The dormitory gate inhibition monitoring center is connected by Ethernet with each monitoring node.Monitoring node described in each includes radio-frequency card reader, MCU module, RF switch, light-operated switch, lighting device, camera device, access control module and the first ethernet communication module;Dormitory gate inhibition monitoring center includes the second ethernet communication module, central processing unit, the first memory module, the second memory module and wireless communication module.The present invention provides a kind of campus dormitory access control system gathered based on radio frequency induction and face, the work of dormitory management personnel was both facilitated, has also reduced the risk of dormitory management.
Description
Technical field
The present invention relates to campus administration, more particularly to a kind of campus dormitory gate inhibition gathered based on radio frequency induction and face
Management system.
Background technology
In recent years, as the continuous of China Higher education's dimension expands, school's enrollment quantity is continuously increased, to campus
Management work proposes requirements at the higher level, wherein, the dormitory management in campus is the most important thing of school control's work.
On daytime, each dormitory in campus generally has administrative staff on duty, and dormitory gate is generally also at opening,
But at night, do not have that administrative staff are on duty, and at this time, dormitory gate needs to be closed generally;But stay in dormitory
Student occur once in a while it is late return phenomenon, for now, when student returns in evening, there are two kinds of dormitories to enter mode, one kind is notice
Administrative staff open the door for student, this just brings very big inconvenience to the work of administrative staff;It is directly each dormitory that another kind, which is,
Gate sets automatic switching system, by identifying radio-frequency card(Campus card)It is still, this to control the automatic shutter at dormitory gate
The mode of radio frequency automatic identification can not be recognized accurately radio-frequency card and the student that enters whether matching, dormitory management has certain
Risk.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of school gathered based on radio frequency induction and face
Garden dormitory access control system, had both facilitated the work of dormitory management personnel, also reduced the risk of dormitory management.
The purpose of the present invention is what is be achieved through the following technical solutions:A kind of school gathered based on radio frequency induction and face
Garden dormitory access control system, including mobile terminal, dormitory gate inhibition monitoring center and the prison at each dormitory gate in campus
Control node;The mobile terminal is connected by wireless network with dormitory gate inhibition's monitoring center;The dormitory gate inhibition monitoring center leads to
Ethernet is crossed to be connected with each monitoring node.
Wherein, the monitoring node described in each include radio-frequency card reader, MCU module, RF switch, light-operated switch,
Lighting device, camera device, access control module and the first ethernet communication module;The radio-frequency card reader and camera device
Output terminal is connected with MCU module;The MCU module is connected by the first ethernet communication module with dormitory gate inhibition's monitoring center;
The Lighting control output terminal of the MCU module passes sequentially through RF switch, light-operated switch and lighting device and connects;The MCU moulds
The access control output terminal of block is connected with MCU module.
Preferably, the monitoring node further includes local storage, and the local storage is connected with MCU module, is used for
The radio-frequency card numbering and student's facial image of entering recognized to monitoring node carries out local preservation.
Wherein, the dormitory gate inhibition monitoring center includes the second ethernet communication module, central processing unit, the first storage mould
Block, the second memory module and wireless communication module, the second ethernet communication module are connected with the first ethernet communication module,
Establish dormitory gate inhibition monitoring center and monitor the ethernet communication between node, the second ethernet communication module and central processing unit
Connection, the central processing unit are connected with the first memory module, the second memory module and wireless communication module respectively, described wireless
Communication module is connected by wireless network with mobile terminal.
Preferably, the mobile terminal includes the mobile phone for being provided with dormitory entrance guard management APP.
All student's radio-frequency cards numbering of dormitory where each monitoring node is stored with first memory module, and respectively
A radio-frequency card numbers corresponding student information;Second memory module is preserved the information from monitoring node.It is described
Student information includes student name, class and student's facial image.
The beneficial effects of the invention are as follows:The present invention can either realize that dormitory management personnel return evening the monitoring of student, and energy
Long-range control of opening the door enough is carried out for dormitory management personnel, the work of dormitory management personnel is facilitated, also reduces dormitory management
Risk.
Brief description of the drawings
Fig. 1 is the system principle diagram of the present invention;
Fig. 2 is the concrete principle schematic diagram of the present invention.
Embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to
It is as described below.
As shown in Figure 1, a kind of campus dormitory access control system gathered based on radio frequency induction and face, including it is mobile whole
End, dormitory gate inhibition monitoring center and the monitoring node at each dormitory gate in campus;The mobile terminal passes through wireless network
Network is connected with dormitory gate inhibition's monitoring center;The dormitory gate inhibition monitoring center is connected by Ethernet with each monitoring node.
As shown in Fig. 2, monitoring node described in each includes radio-frequency card reader, MCU module, RF switch, light-operated
Switch, lighting device, camera device, access control module and the first ethernet communication module;The radio-frequency card reader and shooting
The output terminal of device is connected with MCU module;The MCU module passes through the first ethernet communication module and dormitory gate inhibition's monitoring center
Connection;The Lighting control output terminal of the MCU module passes sequentially through RF switch, light-operated switch and lighting device and connects;It is described
The access control output terminal of MCU module is connected with MCU module.
The dormitory gate inhibition monitoring center includes the second ethernet communication module, central processing unit, the first memory module, the
Two memory modules and wireless communication module, the second ethernet communication module are connected with the first ethernet communication module, are established
Ethernet communication between dormitory gate inhibition monitoring center and monitoring node, the second ethernet communication module connect with central processing unit
Connect, the central processing unit is connected with the first memory module, the second memory module and wireless communication module respectively, the channel radio
News module is connected by wireless network with mobile terminal.
In embodiments herein, the monitoring node further includes local storage, the local storage and MCU moulds
Block connects, and local preservation is carried out for the radio-frequency card numbering recognized to monitoring node and student's facial image of entering.
In embodiments herein, the mobile terminal includes the mobile phone for being provided with dormitory entrance guard management APP.
All student's radio-frequency cards numbering of dormitory where each monitoring node is stored with first memory module, and respectively
A radio-frequency card numbers corresponding student information;Second memory module is preserved the information from monitoring node.It is described
Student information includes student name, class and student's facial image.
The operation principle of the present invention is as follows:Night, dormitory management personnel close dormitory greatly behind the door, if the student that evening returns needs
To enter dormitory, then utilize radio-frequency card(The usually campus card of student)The behaviour that swipes the card is carried out on the radio-frequency card reader of monitoring node
Make, radio-frequency card reader closes the radio-frequency card numbered transmission of reading to MCU module, MCU module control RF switch, at this time night
No light, therefore light-operated switch is also at closure state, lighting device(Such as LED light)Start to work, be illuminated, in illumination
Under environment, camera device(Camera)The face information for the student that enters is gathered, and is transferred to MCU module;Due to only in light
Under dark environment(Such as night-environment), light-operated switch can just close, and only after radio-frequency card numbering is received, MCU moulds
Block just controls RF switch to close, therefore lighting device need not be constantly in working status, and the saving to electric energy has significant make
With.MCU module passes through student's face information of entering that the radio-frequency card numbering from radio-frequency card reader and camera device collect
Ethernet is transferred to dormitory gate inhibition's monitoring center, on the one hand, dormitory gate inhibition monitoring center will be received using second memory
Information is preserved, in order to which administrative staff return the information of student to be managed evening;On the other hand, dormitory gate inhibition monitoring center
Central processing unit numbered according to the radio-frequency card that receives, corresponding student's face letter can be obtained from the first memory module
Breath, dormitory management personnel are only needed by mobile terminal accessing dormitory gate inhibition's monitoring center, you can judge that radio-frequency card numbering corresponds to
Student's facial image and the facial image that collects of monitoring node it is whether consistent, and then be made whether the resolution opened the door, work as place
When house administrative staff determine to open the door, it is only necessary to send door open command, place to dormitory gate inhibition monitoring center by mobile terminal
Door open command is transferred to monitoring node by house gate inhibition's monitoring center by Ethernet again, from the MCU module of monitoring node to gate inhibition
Control module sends door opening command, you can realizes the unlatching at dormitory gate;Therefore, dormitory management personnel also can be long-range at night
Control the unlatching at dormitory gate, it is not necessary to physically go to dormitory gate and carry out enabling work, the work to administrative staff is brought
It is convenient;Meanwhile dormitory management personnel can according to monitoring node information, judge radio-frequency card and enter student whether matching,
And then be made whether the judgement opened the door, reduce the risk of dormitory management.
Claims (7)
- A kind of 1. campus dormitory access control system gathered based on radio frequency induction and face, it is characterised in that:Including mobile whole End, dormitory gate inhibition monitoring center and the monitoring node at each dormitory gate in campus;The mobile terminal passes through wireless network Network is connected with dormitory gate inhibition's monitoring center;The dormitory gate inhibition monitoring center is connected by Ethernet with each monitoring node.
- 2. a kind of campus dormitory access control system gathered based on radio frequency induction and face according to claim 1, its It is characterized in that:Monitoring node described in each includes radio-frequency card reader, MCU module, RF switch, light-operated switch, illumination Device, camera device, access control module and the first ethernet communication module;The output of the radio-frequency card reader and camera device End is connected with MCU module;The MCU module is connected by the first ethernet communication module with dormitory gate inhibition's monitoring center;It is described The Lighting control output terminal of MCU module passes sequentially through RF switch, light-operated switch and lighting device and connects;The MCU module Access control output terminal is connected with MCU module.
- 3. a kind of campus dormitory access control system gathered based on radio frequency induction and face according to claim 2, its It is characterized in that:The monitoring node further includes local storage, and the local storage is connected with MCU module, for monitoring The radio-frequency card numbering and student's facial image of entering that node recognizes carry out local preservation.
- 4. a kind of campus dormitory access control system gathered based on radio frequency induction and face according to claim 1, its It is characterized in that:The dormitory gate inhibition monitoring center include the second ethernet communication module, central processing unit, the first memory module, Second memory module and wireless communication module, the second ethernet communication module are connected with the first ethernet communication module, build Ethernet communication between vertical dormitory gate inhibition monitoring center and monitoring node, the second ethernet communication module connect with central processing unit Connect, the central processing unit is connected with the first memory module, the second memory module and wireless communication module respectively, the channel radio News module is connected by wireless network with mobile terminal.
- 5. a kind of campus dormitory access control system gathered based on radio frequency induction and face according to claim 1, its It is characterized in that:The mobile terminal includes the mobile phone for being provided with dormitory entrance guard management APP.
- 6. a kind of campus dormitory access control system gathered based on radio frequency induction and face according to claim 1, its It is characterized in that:All student's radio-frequency cards numbering of dormitory where each monitoring node is stored with first memory module, and Each radio-frequency card numbers corresponding student information;Second memory module is preserved the information from monitoring node.
- 7. a kind of campus dormitory access control system gathered based on radio frequency induction and face according to claim 6, its It is characterized in that:The student information includes student name, class and student's facial image.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711259087.4A CN107918967A (en) | 2017-12-04 | 2017-12-04 | A kind of campus dormitory access control system gathered based on radio frequency induction and face |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711259087.4A CN107918967A (en) | 2017-12-04 | 2017-12-04 | A kind of campus dormitory access control system gathered based on radio frequency induction and face |
Publications (1)
Publication Number | Publication Date |
---|---|
CN107918967A true CN107918967A (en) | 2018-04-17 |
Family
ID=61898311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201711259087.4A Pending CN107918967A (en) | 2017-12-04 | 2017-12-04 | A kind of campus dormitory access control system gathered based on radio frequency induction and face |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107918967A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108877019A (en) * | 2018-08-08 | 2018-11-23 | 阜阳力佳门业有限公司 | A kind of community's property Intelligent entrance guard management system |
CN111612993A (en) * | 2020-05-29 | 2020-09-01 | 安徽文香信息技术有限公司 | Wisdom campus library management system based on internet |
CN111667621A (en) * | 2020-05-08 | 2020-09-15 | 掌门物联科技(杭州)股份有限公司 | Campus security management system based on composite networking scheme and management method thereof |
CN113160470A (en) * | 2021-04-22 | 2021-07-23 | 安徽中屏科技有限公司 | Dormitory management system based on bracelet is dressed to intelligence |
CN113507499A (en) * | 2021-06-02 | 2021-10-15 | 山西三友和智慧信息技术股份有限公司 | Smart campus dormitory-checking system based on big data |
CN115471942A (en) * | 2022-11-15 | 2022-12-13 | 内江市感官密码科技有限公司 | Campus access control system and monitoring method thereof |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101980305A (en) * | 2010-10-21 | 2011-02-23 | 青岛科技大学 | Face identification and 3G communication-based intelligent household access control system |
CN202210308U (en) * | 2011-09-28 | 2012-05-02 | 汉王科技股份有限公司 | Intelligent door lock with human face recognition function |
CN105243716A (en) * | 2015-10-28 | 2016-01-13 | 汤占宇 | Campus dormitory management system and method |
CN205486380U (en) * | 2016-02-25 | 2016-08-17 | 张泽 | Wireless networking device and control system thereof |
CN106097198A (en) * | 2016-06-08 | 2016-11-09 | 深圳百鸽互联科技有限公司 | Campus Security Management of Information Interaction stage apparatus, system and method |
CN205722064U (en) * | 2016-06-08 | 2016-11-23 | 深圳百鸽互联科技有限公司 | Take pictures gate |
CN207676393U (en) * | 2017-12-04 | 2018-07-31 | 成都星达微科技有限公司 | A kind of campus dormitory access control system acquired based on radio frequency induction and face |
-
2017
- 2017-12-04 CN CN201711259087.4A patent/CN107918967A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101980305A (en) * | 2010-10-21 | 2011-02-23 | 青岛科技大学 | Face identification and 3G communication-based intelligent household access control system |
CN202210308U (en) * | 2011-09-28 | 2012-05-02 | 汉王科技股份有限公司 | Intelligent door lock with human face recognition function |
CN105243716A (en) * | 2015-10-28 | 2016-01-13 | 汤占宇 | Campus dormitory management system and method |
CN205486380U (en) * | 2016-02-25 | 2016-08-17 | 张泽 | Wireless networking device and control system thereof |
CN106097198A (en) * | 2016-06-08 | 2016-11-09 | 深圳百鸽互联科技有限公司 | Campus Security Management of Information Interaction stage apparatus, system and method |
CN205722064U (en) * | 2016-06-08 | 2016-11-23 | 深圳百鸽互联科技有限公司 | Take pictures gate |
CN207676393U (en) * | 2017-12-04 | 2018-07-31 | 成都星达微科技有限公司 | A kind of campus dormitory access control system acquired based on radio frequency induction and face |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108877019A (en) * | 2018-08-08 | 2018-11-23 | 阜阳力佳门业有限公司 | A kind of community's property Intelligent entrance guard management system |
CN111667621A (en) * | 2020-05-08 | 2020-09-15 | 掌门物联科技(杭州)股份有限公司 | Campus security management system based on composite networking scheme and management method thereof |
CN111612993A (en) * | 2020-05-29 | 2020-09-01 | 安徽文香信息技术有限公司 | Wisdom campus library management system based on internet |
CN113160470A (en) * | 2021-04-22 | 2021-07-23 | 安徽中屏科技有限公司 | Dormitory management system based on bracelet is dressed to intelligence |
CN113507499A (en) * | 2021-06-02 | 2021-10-15 | 山西三友和智慧信息技术股份有限公司 | Smart campus dormitory-checking system based on big data |
CN115471942A (en) * | 2022-11-15 | 2022-12-13 | 内江市感官密码科技有限公司 | Campus access control system and monitoring method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107918967A (en) | A kind of campus dormitory access control system gathered based on radio frequency induction and face | |
CN204463162U (en) | A kind of intelligent face recognition system | |
CN206961199U (en) | A kind of automatic entrance guard device based on LoRa Internet of Things transmission technologys | |
CN105608777A (en) | Intelligent community access control system and using method | |
CN107277452A (en) | The intelligent opening and closing device of security protection camera based on channel condition information and method | |
CN203520486U (en) | Smart teaching management system based on wireless sensor network | |
CN105005216A (en) | Intelligent classroom energy-saving control and state inquiry system | |
CN204377053U (en) | Intelligent building visible dialogue system | |
CN205899636U (en) | Intelligent gate inhibition system | |
CN107093235A (en) | A kind of intelligent residential district doorway machine control system | |
CN107172778A (en) | A kind of Intelligent lamp remote wireless control system and its control method | |
CN105137832A (en) | Intelligent energy-saving control system for guest room of hotel | |
CN106959616A (en) | A kind of long distance control system for smart home | |
CN206759793U (en) | A kind of room lighting light intelligent control system | |
CN206245820U (en) | A kind of intelligent Garage System | |
CN207676393U (en) | A kind of campus dormitory access control system acquired based on radio frequency induction and face | |
CN208174852U (en) | A kind of building conversational system based on video monitoring | |
CN209373685U (en) | A kind of non-formula entrance guard device based on recognition of face | |
CN206461732U (en) | Doorway machine and door bell and button system | |
CN205692233U (en) | Intelligent entrance guard management system | |
CN109118618A (en) | A kind of campus intelligent entrance guard based on NB-Iot | |
CN103400094A (en) | Intelligent garage system based on RFID (Radio Frequency Identification) and power line carrier technology | |
CN203084804U (en) | Electronic lock based on wireless networking technology | |
CN212008735U (en) | Non-contact intelligent electroscope for high-voltage power equipment | |
CN206193986U (en) | Intelligent door lock control system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180417 |
|
RJ01 | Rejection of invention patent application after publication |