CN208580200U - Monitoring device and monitoring system - Google Patents
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- CN208580200U CN208580200U CN201821225826.8U CN201821225826U CN208580200U CN 208580200 U CN208580200 U CN 208580200U CN 201821225826 U CN201821225826 U CN 201821225826U CN 208580200 U CN208580200 U CN 208580200U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 43
- 238000012806 monitoring device Methods 0.000 title claims abstract description 40
- 238000004891 communication Methods 0.000 claims abstract description 68
- 238000001514 detection method Methods 0.000 claims abstract description 43
- 238000012360 testing method Methods 0.000 claims abstract description 17
- 238000005516 engineering process Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 4
- 238000004378 air conditioning Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 description 7
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Classifications
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
This application discloses a kind of monitoring device and monitoring systems.The monitoring device detects the object information in monitoring area based on millimetre-wave radar technology by first detection unit, and control unit obtains the number information in monitoring area according to the object information.Simultaneously, according to the testing result to external power supply, come auto switching electric source circuit and communication, overcome the problem of causing host computer not obtain number information in time because of external power supply interruption in the prior art, so that in the case where external power interruptions, host computer can still obtain the number information of monitoring device, so as to remotely be controlled according to number information equipment such as elevator, air-conditionings in monitoring area, can reduce energy waste.
Description
Technical field
This application involves monitoring technology fields, and in particular to a kind of monitoring device and monitoring system.
Background technique
In today's society, skyscraper is more and more, and the equipment such as elevator, air-conditioning are also increase accordingly, many nobody's
These equipment of region are still always on, waste a large amount of electric energy.Meanwhile whether the number in region is more than secure threshold needs
It is monitored.
A kind of monitoring device in the prior art is mainly used in elevator control system, comprising: number acquisition module and control
Nucleus module processed.Number acquisition module is that doorframe installs an infrared sensor of the human body in lift car, in the electricity of every floor
One infrared sensor of the human body is installed again on ladder way ceiling, judged by detecting human body signal sequencing human body into
Out, elevator interior number is finally counted.
However, infrared sensor of the human body is can not to tell to be if having multiple people to pass through it together simultaneously monitors region
Several individuals', it may be mistakenly considered a people, therefore number cannot be accurately identified completely.
Utility model content
It, can relatively accurately statistical number of person information in view of this, the application provides a kind of monitoring device and monitoring system.
The application's, in a first aspect, providing a kind of monitoring device, described device includes:
First detection unit is configured as detecting the object information in monitoring area based on millimetre-wave radar technology;With
And
Control unit is configured as obtaining the number information in monitoring area according to the object information.
Preferably, described device further includes second detection unit, the Temperature Distribution being configured as in detection monitoring area
Information;
Described control unit is additionally configured to be obtained in monitoring area according to the object information and temperature distribution information
Number information.
Preferably, the first detection unit includes:
Transmitting module is configured as transmitting MMW RADAR SIGNAL USING;
Receiving module is configured as receiving the MMW RADAR SIGNAL USING of object reflection;And
Processing module is configured as the MMW RADAR SIGNAL USING received according to the receiving module and exports the object letter
Breath.
Preferably, the first detection unit uses the millimeter wave sensor chip I WR1642 of Texas Instruments.
Preferably, the second detection unit is thermal infrared imager.
Preferably, described device further include:
First wireless communication unit is configured as carrying out wireless communication based on first communication party formula;
Second wireless communication unit is configured as carrying out wireless communication based on second communication method;And
Power supply unit is configured as switching power supply according to the testing result to external power supply.
Preferably, described control unit is additionally configured to when said supply unit detects that external power supply power supply is normal,
It controls the first wireless communication unit switching to be in working condition, the second wireless communication unit of control disconnects;And
When said supply unit detects external power supply power failure, controls first wireless communication unit and disconnects,
The second wireless communication unit switching is controlled to be in working condition.
Preferably, said supply unit includes:
Power supply switch circuit switches power supply for detecting to external power interface according to testing result;
Power circuit, the power supply for being switched according to the power supply switch circuit are that first wireless communication is single
First, described second wireless communication unit, the first detection unit, the second detection unit and control unit power supply.
Preferably, said supply unit further include:
Charging circuit, for passing through external power supply pair when the power supply switch circuit detects that external power supply power supply is normal
Battery charging.
Second aspect provides a kind of monitoring system, the system comprises:
Multiple monitoring devices as described in relation to the first aspect;And
Host computer is configured as wirelessly communicating with the monitoring device.
The application can relatively accurately be united in this way based on the number information in millimetre-wave radar stroke analysis monitoring area
Count the number information in monitoring area.
Detailed description of the invention
By referring to the drawings to the description of the embodiment of the present application, the above-mentioned and other purpose of the application, feature and
Advantage will be apparent from, in the accompanying drawings:
Fig. 1 is the structural schematic diagram of the embodiment of the present application monitoring system;
Fig. 2 is a kind of structural schematic diagram of the monitoring device of embodiment of the embodiment of the present application;
Fig. 3 is the structural schematic diagram of the monitoring device of the embodiment of the present application another embodiment.
Specific embodiment
The application is described below based on embodiment, but the application is not restricted to these embodiments.Under
Text is detailed to describe some specific detail sections in the datail description of the application.Do not have for a person skilled in the art
The application can also be understood completely in the description of these detail sections.In order to avoid obscuring the essence of the application, well known method, mistake
There is no narrations in detail for journey, process, element and circuit.
In addition, it should be understood by one skilled in the art that provided herein attached drawing be provided to explanation purpose, and
What attached drawing was not necessarily drawn to scale.
It will also be appreciated that in the following description, " circuit " refers to be passed through electrically by least one element or sub-circuit
The galvanic circle that connection or electromagnetism connect and compose.When title element or the " connection of another element of circuit " being connected to " or element/circuit
" between two nodes when, it, which can be, is directly coupled or connected another element or there may be intermediary element, element it
Between connection can be physically, in logic or its combination.On the contrary, when claiming element " being directly coupled to " or " directly connecting
Be connected to " another element when, it is meant that the two be not present intermediary element.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar
Word should be construed as the meaning for including rather than exclusive or exhaustive meaning;That is, be " including but not limited to " contains
Justice.
In the description of the present application, it is to be understood that term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present application, unless otherwise indicated, the meaning of " multiple "
It is two or more.
With reference to the accompanying drawing and specific embodiment is described further the application.
Fig. 1 is the structural schematic diagram of the embodiment of the present application monitoring system.As shown in Figure 1, monitoring system includes 2 He of host computer
Multiple monitoring devices 1.Monitoring device 1 is wirelessly communicated with host computer 2, with the number for reporting monitoring device 1 to be counted
Information.Wherein, the number information includes human body quantity, position of human body and human motion speed etc..Host computer 2 can be dedicated
Wireless communication terminal, can also be the communications data processing unit with wireless communication function, such as be mounted with respective application journey
The equipment such as mobile phone, tablet computer, notebook computer or the desktop computer of sequence.The wireless mode be carrier network or
Radio network gateway.
The present embodiment detects human body quantity, position of human body and human motion speed in monitoring area by monitoring device
Equal number informations are simultaneously wirelessly uploaded to host computer, and operator can be according to number information to the electricity in monitoring area
The equipment such as ladder, air-conditioning are controlled, and more efficiently carry out energy management, it is possible to reduce the waste of electric energy.
Fig. 2 is a kind of structural schematic diagram of the monitoring device of embodiment of the embodiment of the present application.As shown in Fig. 2, monitoring dress
Setting 1 includes first detection unit 11, control unit 13, the first wireless communication unit 14, the second wireless communication unit 15 and power supply
Unit 16.First detection unit 11, the object information being configured as in detection monitoring area.Control unit 13, is configured as
According to the object information statistical number of person information.First wireless communication unit 14 is configured as carrying out based on first communication party formula
Wireless communication.Second wireless communication unit 15, is configured as carrying out wireless communication based on second communication method.Power supply unit 16,
It is configured as switching power supply according to the testing result to external power supply.Wherein, the power supply includes external power supply 17
It is described control unit 13, first wireless communication unit 14,15 and of the second wireless communication unit with backup power source 18
The first detection unit 11 is powered.
In the present embodiment, first detection unit 11 is configured as the object information in detection monitoring area.The object
Body information includes size, position and movement speed of object etc..
Preferably, the first detection unit 11 is millimetre-wave radar.Millimetre-wave radar is a kind of radar of Special Category
Technology, using millimeter wave, working frequency has reached 76-81GHz, and wavelength is about 4mm.Millimetre-wave radar passes through transmitting module to one
Determine direction transmitting millimeter wave, millimeter wave can generate reflection after encountering object, and receiving module receives the millimetre-wave radar of object reflection
Signal.The MMW RADAR SIGNAL USING and built-in algorithm that processing module is received according to the receiving module export object information.
Millimetre-wave radar can detecte the size of object, position and movement speed etc..It, can since the wavelength of millimeter wave is very small
To recognize the object of very little, accuracy is very high, can recognize human body completely.And generate the equipment requirement of this electromagnetic wave
Very simple, the electronic component very little needed, antenna size also can be very small, and cost can be very low, and system composition also can be more
Simply.
In the present embodiment, it is sensed using the dedicated millimeter wave of TI (Texas Instruments, Texas Instrument) company
Device chip I WR1642.The chip will emit and reception radio-frequency devices, analog device, digital device, analog signal turn digital signal
The various composition devices such as device and signal processor have been fully integratible into a chip, so that entire circuit design difficulty
It is greatly lowered, cost is also much less therewith.And by the algorithm built in it, more accurate demographics can be exported
As a result, it is possible to achieve precision is greater than 90% object location information within 14 meters, in 120 degree of orientation angular field of view.Meanwhile also
It can detecte the movement speed of object.
In the present embodiment, control unit 13 is configured as counting the number in monitoring area according to the object information
Information.11 detection object of first detection unit is very accurate, including volume, different object information, control unit 13
More accurate demographics result can be exported by its built-in algorithm with very strong data-handling capacity.
In the present embodiment, the first wireless communication unit 14 is carried out wireless communication based on first communication party formula, and monitoring is filled
The number information for setting 1 detection is sent to host computer 2.
Preferably, the first wireless communication unit 14 can be near radio network module, such as bluetooth module etc. can also
Think remote wireless network module, such as LORA module, ZigBee module etc..
Specifically, LORA is one kind of LPWAN (low-power consumption wide area network, Low Power Wide Area Network), is
A kind of overlength distance wireless transmission scheme based on spread spectrum that Semtech company, the U.S. uses and promotes, have it is remote,
The features such as low-power consumption, multinode and low cost.ZigBee technology is a kind of short distance, low complex degree, low-power consumption, low rate and low
The bidirectional wireless communication technology of cost.Therefore, the covering model of wireless network can be expanded using wireless networks such as LoRa, ZigBee
It encloses, meanwhile, network signal is stablized, and is not easy to interrupt, and reduction can not be monitored monitoring device 1 because of caused by net drop
Abnormal conditions occur.
In the present embodiment, the second wireless communication unit 15 is configured as carrying out wireless communication based on second communication method,
The number information that monitoring device 1 detects is sent to host computer 2.
Preferably, the second wireless communication unit 15 is NB-IoT (narrowband Internet of Things, Narrow Band Internet of
Things) module or GPRS module.
Specifically, NB-IoT network has the following characteristics that first is that wide covering, it will thus provide improved in-door covering, same
Frequency range under, NB-IoT is equivalent to than existing network gain 20dB and improves the ability of 100 times of overlay areas;Second is that having
The ability of magnanimity connection is supported, mono- sector NB-IoT can support 100,000 connections, support low latency sensitivity, ultralow set
Standby cost, the network architecture of low equipment power dissipation and optimization;Third is that more low-power consumption, the stand-by time of NB-IoT terminal module is
10 years;Fourth is that lower module cost.GPRS has the characteristics that efficiency of transmission is high, turn-on time is short, can expand wireless network
Coverage area, while network signal stablize, be not easy to interrupt.But the use of NB-IoT communication module and GPRS module needs to receive
Take, so higher communication cost can be generated under the occasion frequently communicated.
In the present embodiment, power supply unit 16 are configured as according to the testing result switching power supply electricity to external power supply 17
Source.Power supply includes external power supply 17 and backup power source 18, is described control unit 13, first wireless communication unit
14, second wireless communication unit 15 and the first detection unit 11 are powered.
Whether power supply unit 16 is configured as detection external power supply 17 normal, and according to the testing result to external power supply 17
Switch power supply, while the testing result to external power supply 17 is sent to control unit 13.Specifically, power supply unit
16 are connected to external power supply 17 and backup power source 18.The backup power source 18 can be battery.Preferably, the battery is that can fill
Battery.The external power supply 17 can be 220v or 380v alternating current transmission line.Power supply unit 16 is configured as in external power supply
When 17 power supplies are normal, into other module for power supply of monitoring device 1 after being converted to the electric energy that external power supply 17 provides, in outside
When 17 power failure of power supply, it is switched to other module for power supply after converting to the electric energy of backup power source 18 into monitoring device 1.
In the present embodiment, control unit 13 according to the power supply unit 16 received to the testing result of external power supply 17 come
Switch the working condition of the first wireless communication unit 14 and the second wireless communication unit 15.
Specifically, when the testing result prompt power supply to external power supply 17 is normal, the control of control unit 13 first is wireless
The switching of communication unit 14 is in working condition, while controlling 15 power cut-off of the second wireless communication unit.13 energy of control unit at this time
Number information is enough sent to host computer 2 by the first wireless communication unit 14.When the testing result to external power supply 17 prompts to supply
When electricity interrupts, control unit 13 controls 14 power cut-off of the first wireless communication unit, while controlling the second wireless communication unit 15
Switching is in working condition.The characteristics of due to the second more low-power consumption of wireless communication unit 15, so that after the interruption of external power supply 17,
It still can be with the work of long period under conditions of being powered using backup power source 18.Meanwhile NB-IoT or GPRS are operator's nets
Network, when power is off, NB-IoT or GPRS network are unaffected, and monitoring device 1 can be made to continue to keep and host computer 2
Communication.But since NB-IoT or GPRS are charge networks, be not suitable for using in using frequent occasion, therefore, outside
Portion's power supply 17 is powered and is carried out wireless communication in normal situation using the first wireless communication unit 14.
Power supply unit 16 can constantly detect external power supply 17.When the service restoration for detecting external power supply 17 is normal,
Control unit 13 controls the switching of the first wireless communication unit 14 and is in working condition, and the second wireless communication unit 15 of control is to terminate work
Make state.The communication cost generated by long-time using the second wireless communication unit 15 can be reduced in this way.
In the present embodiment, power supply unit 16 includes power supply switch circuit 16a, power circuit 16b and charging circuit 16c.
Power supply switch circuit 16a is connected to external power supply 17 and backup power source 18.The backup power source 18 can be battery.Preferably,
The battery is rechargeable battery.Power supply switch circuit 16a is configured as detecting 17 interface of external power supply of connection, root
Switch power supply according to testing result.In the present embodiment, when normal to the prompt of 17 testing result of external power supply, power supply switching
Circuit 16a switches the input terminal that external power supply 17 is connected to power circuit 16b.When the testing result prompt to external power supply 17
When interruption, power supply switch circuit 16a switches the input terminal that backup power source 18 is connected to power circuit 16b.Power circuit 16b root
According to each unit confession that the power supply signal that the power supply to input terminal carries out power conversion output predetermined voltage is in the monitoring device 1
Electricity.When backup power source 18 is rechargeable battery, external power supply 17 is filled by charging circuit 16c to backup power source 18 when powering normal
Electricity, optionally, when backup power source 18 is not rechargeable battery, power supply unit 16 can be not provided with charging circuit 16c.The present embodiment
Ensure that still has backup power source 18 to power for it even if monitoring device 1 in the case where external power supply 17 interrupts, and makes monitoring device 1
It can work on.
In the present embodiment, control unit 13 can by MCU (Microcontroller Unit, micro-control unit),
PLC (Programmable Logic Controller, programmable logic controller (PLC)), FPGA (Field-Programmable
Gate Array, field programmable gate array), DSP (Digital Signal Processor, digital signal processor) or specially
It is realized with integrated circuit.
The present embodiment detects the object information in monitoring area using millimetre-wave radar technology by first detection unit,
Control unit obtains the number information in monitoring area according to the object information.Meanwhile according to the detection knot to external power supply
Fruit comes auto switching electric source circuit and communication, overcome in the prior art because external power supply interrupt due to cause it is upper
Machine can not obtain the problem of number information in time, so that host computer can still obtain monitoring dress in the case where external power interruptions
The number information set, so as to remotely be controlled according to number information equipment such as elevator, air-conditionings in monitoring area, energy
Enough reduce energy waste.
Fig. 3 is the structural schematic diagram of the monitoring device of the embodiment of the present application another embodiment.Monitoring as shown in Figure 3
Device further includes second detection unit 12, the temperature distribution information being configured as in detection monitoring area.
Preferably, the second detection unit 12 is thermal infrared imager.Thermal infrared imager be exactly by object issue can not
See that infrared energy is changed into visible thermal image.The different colours of the upper surface of thermal image represent the different temperatures of testee.It is logical
It crosses and checks thermal image, it can be observed that the bulk temperature distribution situation of measured target, the heat condition of goal in research, to carry out
The judgement of further work.The working principle of modern thermal imaging system is to be detected and measured radiation using optoelectronic device, and radiating
It establishes and connects each other between surface temperature.All objects higher than absolute zero (- 273 DEG C) can all issue infra-red radiation.Heat
As instrument is reflected using the infrared radiation energy distribution pattern that infrared detector and optical imaging objective receive measured target to infrared
On the light-sensitive element of detector, to obtain Infrared Thermogram, this thermography is corresponding with the heat distribution field of body surface.
In upper one embodiment, monitoring device 1 detects quilt using millimetre-wave radar technology by first detection unit 11
Object information in monitoring area, control unit 13 obtain the number information in monitoring area according to the object information.Due to
First detection unit 11 is substantially by object radar signal reflected come detection object information, so in the number information of statistics
There may be the object similar with characteristics of human body, there is a certain error so as to cause the number information of statistics.
In the present embodiment, control unit 13 excludes the object of inhuman temperature by second detection unit 12, in this way may be used
To make the number information of statistics more accurate in such a way that first detection unit is in conjunction with second detection unit.
In the present embodiment, power supply unit 16 is additionally configured to according to the testing result switching power supply electricity to external power supply 17
Source is the second detection unit 12 power supply.
The present embodiment detects the object information in monitoring area by first detection unit, and second detection unit detects quilt
Temperature distribution information in monitoring area, control unit is according to the object information and temperature distribution information statistical number of person information.
It in this way can be with the numbers such as human body quantity, position of human body and human motion speed in more accurate geo-statistic monitoring area letter
Breath.Meanwhile according to the testing result to external power supply, comes auto switching electric source circuit and communication, overcome existing
The problem of causing host computer not obtain number information in time because of external power supply interruption in technology, so that in external power interruptions
In the case where, host computer can still obtain the number information of monitoring device, so as to according to number information in monitoring area
The equipment such as elevator, air-conditioning remotely controlled, energy waste can be reduced.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for those skilled in the art
For, the application can have various modifications and changes.All any modifications made within the spirit and principles of the present application are equal
Replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of monitoring device, which is characterized in that described device includes:
First detection unit is configured as detecting the object information in monitoring area based on millimetre-wave radar technology;And
Control unit is configured as obtaining the number information in monitoring area according to the object information.
2. monitoring device according to claim 1, which is characterized in that described device further includes second detection unit, is matched
The temperature distribution information being set in detection monitoring area;
Described control unit is additionally configured to obtain the number in monitoring area according to the object information and temperature distribution information
Information.
3. monitoring device according to claim 1 or 2, which is characterized in that the first detection unit includes:
Transmitting module is configured as transmitting MMW RADAR SIGNAL USING;
Receiving module is configured as receiving the MMW RADAR SIGNAL USING of object reflection;And
Processing module is configured as the MMW RADAR SIGNAL USING received according to the receiving module and exports the object information.
4. monitoring device according to claim 1 or 2, which is characterized in that the first detection unit uses texas,U.S
The millimeter wave sensor chip I WR1642 of instrument company.
5. monitoring device according to claim 2, which is characterized in that the second detection unit is thermal infrared imager.
6. monitoring device according to claim 2, which is characterized in that described device further include:
First wireless communication unit is configured as carrying out wireless communication based on first communication party formula;
Second wireless communication unit is configured as carrying out wireless communication based on second communication method;And
Power supply unit is configured as switching power supply according to the testing result to external power supply.
7. monitoring device according to claim 6, which is characterized in that described control unit is additionally configured in the power supply
When unit detects that external power supply power supply is normal, controls the first wireless communication unit switching and be in working condition, control second
Wireless communication unit disconnects;And
When said supply unit detects external power supply power failure, controls first wireless communication unit and disconnect, control
The second wireless communication unit switching is in working condition.
8. monitoring device according to claim 6, which is characterized in that said supply unit includes:
Power supply switch circuit switches power supply for detecting to external power interface according to testing result;And
Power circuit, the power supply for being switched according to the power supply switch circuit are first wireless communication unit, institute
State the second wireless communication unit, the first detection unit, the second detection unit and control unit power supply.
9. monitoring device according to claim 6, which is characterized in that said supply unit further include:
Charging circuit, for passing through external power supply to battery when the power supply switch circuit detects that external power supply power supply is normal
Charging.
10. a kind of monitoring system, which is characterized in that the system comprises:
Multiple monitoring devices as claimed in any one of claims 1-9 wherein;And
Host computer is configured as wirelessly communicating with the monitoring device.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110599640A (en) * | 2019-08-21 | 2019-12-20 | 杭州享钥科技有限公司 | Personnel monitoring system based on millimeter wave radar |
CN110728782A (en) * | 2019-08-21 | 2020-01-24 | 杭州享钥科技有限公司 | Management system suitable for place entrance guard and power |
WO2022048123A1 (en) * | 2020-09-04 | 2022-03-10 | Oppo广东移动通信有限公司 | Internet of things communication method and apparatus, device, and computer storage medium |
CN114422882A (en) * | 2022-01-20 | 2022-04-29 | 江苏契讯数智信息技术有限公司 | Wireless transmission integrated device based on millimeter wave detection |
-
2018
- 2018-07-31 CN CN201821225826.8U patent/CN208580200U/en active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110599640A (en) * | 2019-08-21 | 2019-12-20 | 杭州享钥科技有限公司 | Personnel monitoring system based on millimeter wave radar |
CN110728782A (en) * | 2019-08-21 | 2020-01-24 | 杭州享钥科技有限公司 | Management system suitable for place entrance guard and power |
WO2022048123A1 (en) * | 2020-09-04 | 2022-03-10 | Oppo广东移动通信有限公司 | Internet of things communication method and apparatus, device, and computer storage medium |
CN114422882A (en) * | 2022-01-20 | 2022-04-29 | 江苏契讯数智信息技术有限公司 | Wireless transmission integrated device based on millimeter wave detection |
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