CN107316490A - Intelligent prompt system - Google Patents
Intelligent prompt system Download PDFInfo
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- CN107316490A CN107316490A CN201610272240.6A CN201610272240A CN107316490A CN 107316490 A CN107316490 A CN 107316490A CN 201610272240 A CN201610272240 A CN 201610272240A CN 107316490 A CN107316490 A CN 107316490A
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- operator
- prompt system
- intelligent prompt
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
-
- 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
- G06Q10/00—Administration; Management
- G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
- G06Q10/047—Optimisation of routes or paths, e.g. travelling salesman problem
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
- G08B7/062—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources indicating emergency exits
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- Business, Economics & Management (AREA)
- Engineering & Computer Science (AREA)
- Human Resources & Organizations (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Economics (AREA)
- Strategic Management (AREA)
- Quality & Reliability (AREA)
- Marketing (AREA)
- Operations Research (AREA)
- Entrepreneurship & Innovation (AREA)
- Tourism & Hospitality (AREA)
- Game Theory and Decision Science (AREA)
- General Business, Economics & Management (AREA)
- Development Economics (AREA)
- Theoretical Computer Science (AREA)
- Emergency Management (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Telephonic Communication Services (AREA)
Abstract
A kind of intelligent prompt system, can be with server communication, multiple sensors are set by domain space on the scene, with in the diverse location broadcast positioning signals in the field domain space, and position is sensed with the presence or absence of sensing thing, the positional information where operator and the sensing thing distribution information in the field domain space are learnt in calculation accordingly, and then provide the optimum waveguide traction path to target location for the operator, have the advantages that to have a wide range of application and hardware cost is low.
Description
Technical field
The present invention relates to a kind of information presentation system, in particular it relates to which a kind of be used to point out field domain to operator
The intelligent prompt system of spatial information.
Background technology
With the continuous improvement of city vehicle recoverable amount, people's trip of driving is increasingly difficult to find parking stall, is
The problem of traffic congestion of alleviation urban pavement and parking difficulty, the scale of urban parking area also gradually tends to be large-scale
Change, this brings huge challenge to the efficient guiding and management in parking lot.The parking prompting in existing each parking lot
Service, mostly only prompting driver parking lot whether there is empty parking space or there remains several empty parking spaces, and can not carry
Show the specific parking stall use state information in the parking lot, cause driver for a long time to be detoured in parking lot
To find empty parking space, this measure can not only cause the vehicle in parking lot stop up it is stifled also add driver's parking when
Between cost.Therefore, urban parking area how is assisted to carry out advanced intelligently guiding, to improve the parking of vehicle
Efficiency and reduction social cost, are the one of this case problem to be solved.
In addition, with increasing, the inside of current city building of people's daily life and work requirements
Structure also becomes more sophisticated.However, when these buildings burst emergency, such as during fire, how
Reasonably quickly guiding crowd flees from disaster scene tool and is of great significance, although in Most current building
In thing, indicator for life saving has all been laid, but such device is generally separate to each other, it is impossible to identify
Go out complete escape route, in addition, the escape direction indicated by such device is fixes, and can not be according to prominent
Hair-like condition makes corresponding change, and how to overcome drawbacks described above, is this case another technology to be solved
Problem.
The content of the invention
In view of the variety of problems of above-mentioned prior art, can be in field domain it is a primary object of the present invention to provide one kind
The intelligent prompt system of the sensing thing distribution in operator position and the field domain space is pointed out in space
System.
Can be operator in domain space on the scene another object of the present invention is to provide a kind of intelligent prompt system
Optimum waveguide traction path planning to target location is provided.
Can be operator in domain space on the scene it is still another object of the present invention to provide a kind of intelligent prompt system
The optimum programming of best-effort path is provided, and action can be entered to best-effort path according to the change of field condition in real time
State is adjusted.
A further object of the present invention is to provide a kind of intelligent prompt system, with application field relatively wide and hardware
Lower-cost advantage.
To reach above-mentioned purpose and other purposes, the present invention provides a kind of intelligent prompt system, itself and service
Device communicates, the information for pointing out operator field domain space, wherein, the field domain space is provided with multiple sensings
Device, the plurality of sensor senses position with the presence or absence of sensing thing respectively, and according to the result sensed point
Not Chan Sheng sensing result information, the plurality of sensor is also in the diverse location broadcast positioning signals in the field domain space
To represent position, the server receives the sensing result information produced by the plurality of sensor；The intelligence
Prompt system includes：Message handler and information alert device, wherein, the message handler receives neighbouring be somebody's turn to do
The positioning signal of the sensor of operator, and the sense of the sensor from the non-adjacent operator of server reception
Survey object information, and after learn the position of the operator and the sensing thing point in the field domain space through calculation
Cloth state；The information alert device is transmitted messages by text information, voice or by the map in the field domain space, right
The operator points out its position and the sensing thing distribution in the field domain space.
Preferably, in above-mentioned intelligent prompt system, in addition to trigger, assigned receiving the operator
Instruction when, trigger the information alert device perform prompting operation.
Preferably, in above-mentioned intelligent prompt system, the message handler triggers the information alert device and held automatically
Row prompting operation.
Preferably, in above-mentioned intelligent prompt system, in addition to target loader, it is empty for inputting the field domain
In target location, and receive the location information of the target location, then the message handler or server
Learnt through calculation, the position of the operator to the guide path of the target location, the information alert device pair
The operator points out the guide path.
Preferably, in above-mentioned intelligent prompt system, the field domain space, should provided with least one escape position
Message handler receives the location information of the escape position, and then the message handler or server are through calculating
Know the position of the operator at least one best-effort path of the escape position；The information alert device is to this
Operator points out the best-effort path.
Preferably, in above-mentioned intelligent prompt system, the best-effort path avoids the operator in the field domain space
The position of other outer sensing things.
Preferably, in above-mentioned intelligent prompt system, the field domain space is parking lot；The sensing thing behave or
Vehicle；The positioning signal of the sensor of position when the message handler receives operator parking, then
Learn the parking spot of the operator automatically through calculation, and record the parking spot of the operator automatically.
Preferably, in above-mentioned intelligent prompt system, the message handler receives the parking of operator reservation
Position.
Preferably, in above-mentioned intelligent prompt system, when the operator leaves the parking spot, the information
Processor or server learn that bus or train route footpath is sought in the position of the operator to the parking spot through calculation；
The information alert device points out this to seek bus or train route footpath the operator.
Preferably, in above-mentioned intelligent prompt system, the plurality of sensor is respectively provided in the field domain space and carried
On the path for supplying operator movement.
In summary, intelligent prompt system of the invention is by setting multiple sensors in domain space on the scene, and
According to the positioning signal that respectively sensor is broadcasted and produced sensing result information, the operator is pointed out to exist
The distribution shape of sensing thing in position and the field domain space in the field domain space beyond the operator
State, so that the optimal path of navigation to target location is provided in the field domain space for operator, for operator
The target location that can quickly arrive in the field domain space, can be widely applied to all types of common pilots services
In, there is application compared with wide and hardware cost is low.
Brief description of the drawings
Fig. 1 is to illustrate that the laying relation between intelligent prompt system, sensor and the server of the present invention is shown
It is intended to；
Fig. 2A is the schematic diagram to illustrate one embodiment of the intelligent prompt system of the present invention；
Fig. 2 B are the schematic diagram to illustrate another embodiment of the intelligent prompt system of the present invention；And
Fig. 3 is to illustrate showing for the embodiment that the intelligent prompt system of the present invention is applied in the situation of parking lot
It is intended to.
Description of reference numerals：
100 intelligent prompt systems
110 message handlers
130 information alert devices
150 triggers
170 target loaders
200 servers
30 field domain spaces
300a~300g sensors
Embodiment
Herein below will be arranged in pairs or groups schema, and the technology contents of the present invention are illustrated by particular specific embodiment, ripe
Other advantages and work(of the present invention can be understood easily by content disclosed in the present specification by knowing the personage of this technology
Effect.The present invention also can be implemented or applied by other different specific embodiments.It is each in this specification
Details also can based on different viewpoints and application, under the spirit without departing substantially from the present invention, carry out various modifications with
Change.Especially, the ratio of each component is closed in the drawings and relative position only has exemplary use, not
Represent the actual state that the present invention is implemented.
Referring to Fig. 1, the laying relation between its intelligent prompt system, sensor and server for the present invention is shown
Be intended to, as illustrated, intelligent prompt system 100 and the communication connection of server 200 of the present invention, for pair
In operator's (operator herein refers to the user of intelligent prompt system 100) prompting field domain space 30
Relevant information, wherein, the field domain space 30 refers to arbitrary public place, is especially preferred with interior architecture thing,
All kinds of public places such as parking lot, hypermarket, school, hospital.The server 200 can be such as Fig. 1 institutes
Show and be arranged in the field domain space 30, the high in the clouds (being unillustrated) that also may be provided at outside the field domain space 30.
Multiple sensor 300a, 300b and 300c are provided with the field domain space 30, so that by the field domain space
30 correspondences are divided into multiple sensing regions (the sensing radius of each sensing region is, for example, 5-10 meters), and this is more
Individual sensor 300a, 300b and 300c to sense respectively position with the presence or absence of have sensing thing (i.e. respectively this
Sensor is sensed in corresponding sensing region with the presence or absence of sensing thing, including mobile or non-moving people or thing),
And corresponding sensing result information is produced respectively according to the result of sensing.The server 200 and the plurality of sensing
Device 300a, 300b and 300c are communicated to connect, to receive the plurality of sensor 300a, 300b and 300c
The sensing result information generated.
In the present embodiment, sensor 300a, 300b and 300c can transmit the sensing result information in real time extremely
The server 200, also can periodically transmit the sensing result information to the service according to default time interval
Device 200, also or be set to work as the sense of sensor 300a, 300b and 300c in present position is sensed
When the existence for surveying thing changes (that is, when sensing position becomes to exist from the absence of sensing thing
When sensing thing or from when becoming to be not present sensing thing in the presence of sensing thing), transmit the sensing result information and extremely service
Device 200.In addition, the plurality of sensor 300a, 300b and 300c can also be respectively in the field domain spaces 30
Diverse location broadcasts the positioning signal to represent position.Furthermore, the intelligent prompt system 100 is to appoint
The electronic product of meaning form, the electronic equipment such as notebook computer, flat board, it is preferable that the intelligent prompt
System 100 is hand-held or the wearable electronic equipments such as mobile phone, electronics bracelet.In addition, the field domain space 30
The laying quantity and distribution density of interior sensor can be needed according to the actual size in the field domain space 30 and use
Ask and be adjusted, be not particularly limited.
Fig. 2A is referred to, it is the schematic diagram of one embodiment of the intelligent prompt system 100 of the present invention, its
In, the basic framework of the intelligent prompt system 100 includes message handler 110 and information alert device 130.
Sensor 300b of the message handler 110 to receive neighbouring (i.e. close) operator positioning signal,
And receive the sensor 300a and 300c of the non-adjacent operator sensing result information from the server 200,
The position of the operator and the sense beyond the operator in the field domain space 30 can be then learnt through calculation
Survey thing distribution.Specifically, when the operator carries the intelligent prompt system 100 in field domain sky
Between in 30 when, the message handler 110 in the intelligent prompt system 100 can receive the biography of the neighbouring operator
The positioning signal that sensor (such as the sensor 300b in Fig. 1) is broadcasted, meanwhile, the message handler 110
The server 200 is also communicated to connect, to receive other non-adjacent operators' that the server 200 is transmitted
Sensing result information produced by sensor (i.e. sensor 300a and 300c in Fig. 1), and according to sensing
The positioning signal of device 300b broadcast, calculates out position of the operator in the field domain space 30, with
And according to the sensing result information produced by sensor 300a and 300c, calculating out should in the field domain space 30
The distribution of other sensing things beyond operator.
Information alert device 130 be used to receiving the position of the operator that the message handler 110 is calculated out with
The distribution of other sensing things in the field domain space 30 beyond the operator, and pass through word-information display
Mode, voice transmit messages mode or by should field domain space 30 map denotation mode, with to the operator
Point out its position in the field domain space and other sensing things beyond the operator in the field domain space
Distribution.
Please refer to Fig. 2 B, in one embodiment of the invention, the intelligent prompt system 100 also includes
Trigger 150, when receiving instruction that the operator is assigned, to trigger the information alert device 130 and perform
Operation is pointed out, so that reduce the run time of the information alert device 130 and reach the purpose of power saving, wherein,
The trigger 150 can be entity triggers key or for by the virtual triggering key of Touch Screen.In the another of the present invention
In one embodiment, it also may be configured as learning the place of the operator through calculation when the message handler 110
In position and the field domain space 30 during other sensing thing distributions beyond the operator, then triggering should automatically
Information alert device 130 points out the information that above-mentioned calculation is learnt.
Furthermore, please continue to refer to Fig. 2 B, intelligent prompt system 100 of the invention further includes target loader 170,
For providing the target location that operator is inputted in the field domain space, and from the message handler 110 or service
Device 200 receives the corresponding location information in the target location, then makes the message handler 110 or server 200
The position of the operator is learnt to the guide path of the target location through calculation, so that for the information alert
Device 130 couples of operators point out the guide path.Wherein, the calculation operation of above-mentioned guide path can be by this
Message handler 110 and directly in the local side of intelligent prompt system 100 perform, also can be by the server
200 after calculating out the guide path, then the guide path that the calculation is drawn is sent into the intelligence by network
In prompt system 100, so as to be pointed out for the information alert device 130.
The present invention intelligent prompt system 100 application field widely, in an Application Example, this
Invention is applied to escape guiding service, and it is applied to all types of public places, especially large-scale interior architecture
In thing, such as office building, school, hospital, gymnasium.Specifically, set in the field domain space 30
At least one escape position is equipped with, the message handler 110 is to receive the corresponding positioning letter in the escape position
Breath, and calculated by the message handler 110 or server 200, learn the operator in the field domain space 30
Interior at least one best-effort path by its present position to the escape position, and by the information alert device
130 couples of operators point out the best-effort path that this is calculated out.Preferably, the message handler 110 or server
200 can also adjust the escape according to the sensing result information produced by the sensor 300a, 300b and 300c
Path to avoid the position of other sensing things in the field domain space 30 outside the operator, that is, sentencing
When there are barrier (other sensing things i.e. outside the operator) on the disconnected best-effort path currently calculated out,
Then the adjust automatically best-effort path, disaster affected people is helped under environment complicated and changeable to avoid the barrier,
Follow optimal best-effort path and rapidly escape from disaster scene.
In another application embodiment, intelligent prompt system of the invention is applied to stopping guide service, please match somebody with somebody
Conjunction refers to Fig. 3, wherein, interval is laid with multiple sensor 300a~300i on each bar runway in parking lot.
The intelligent prompt system of the present invention can be when operator drives vehicle and drives into the parking lot, by information alert device
Point out the vehicle that the operator is driven present position (that is, place of the operator in the parking lot
Position), specifically, when the position where vehicle drives into " operator " shown in Fig. 3, information processing
Device by receiving the positioning signal that the sensor 300b of the neighbouring operator is broadcasted, with after calculation by this
Information alert device points out the operator its current particular location in the parking lot, in addition, the present invention can also
Point out in the parking lot current with the presence or absence of sensing thing (that is, the sensing thing in the field domain space on each runway
Distribution), as shown in figure 3, when personnel's walking sensor 300d on runway sensing area
During domain, sensor 300d can be sensed and currently be there are personnel's (sensing thing) on affiliated sensing region, from
And allow an operator to know in advance to avoid the personnel on the runway on sensor 300d sensing regions, from
And improve the traffic safety in parking lot.In the present invention, simultaneously can also cloth on each parking stall in the parking lot
If sensor so that the car on the Nei Ge parking stalls of the parking lot that intelligent prompt system of the invention can also be pointed out
Parking status, allows an operator to be quickly found out the parking stall of free time, is parked the time with shortening.
In addition, the sensor when message handler 110 can also be used to receive operator parking on position
The positioning signal broadcasted, and the behaviour is learnt automatically after the message handler 110 or the calculation of server 200
The parking spot of author, and the parking spot of the operator is recorded automatically, it is preferable that the message handler 110
Also the parking spot of operator reservation can be received and the corresponding location information of the parking spot is recorded, so that
When operator driving vehicle drives into the parking lot, automatic planning guide path for operator so as to can quickly sail
Enter the parking spot of the reservation.
Preferably, when the operator is after vehicle parking is finished and leaves the parking spot, the present invention can be at this
When operator again returns to parking lot and is intended to recover the parked vehicle, by the message handler 110 or clothes
Business device 200 learns that bus or train route footpath is sought in the position of the operator to the parking spot through calculating, so as to make this
130 couples of operators of information alert device point out corresponding to seek bus or train route footpath.It should be noted that, in the present embodiment
In, respectively the sensor is respectively provided on the path for being supplied to the operator to move in the field domain space 30, so that
The positioning signal to represent position is broadcasted for the operator, so that the place of the operator is learnt in calculation
Position.
In summary, intelligent prompt system of the invention is by multiple sensings that are spaced apart in domain space on the scene
Device, respectively the sensor is used for broadcast positioning signals and sensing position whether there is sensing thing and produce sensing
Object information, and the position of operator of the present invention and the operator in the field domain space can be calculated out accordingly
Sensing thing distribution information in addition is simultaneously pointed out, so as to be provided for the operator in the field domain space
To the optimal path of navigation of target location, so that the target in the field domain space can quickly be arrived at by providing the operator
The escape guiding clothes of position, it is adaptable to various information service fields, such as stopping guide service and public place
Business, and hardware cost is relatively low, can be applied in large area in all types of public places.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed,
But therefore it can not be interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, can also make it is some deformation and
Improve, these all belong in protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is defined.
Claims (10)
1. a kind of intelligent prompt system, itself and server communication, the letter for pointing out operator field domain space
Breath, wherein, the field domain space is provided with multiple sensors, and the multiple sensor senses position respectively is
It is no to there is sensing thing, and sensing result information, the multiple sensor are produced respectively according to the result sensed
Also in the diverse location broadcast positioning signals in the field domain space to represent position, the server is received
Sensing result information produced by the multiple sensor；The intelligent prompt system includes：
Message handler, receives the positioning signal of the sensor of the neighbouring operator, and from the server
Receive the sensing result information of the sensor of the non-adjacent operator, and after learn the operator's through calculation
Position and the sensing thing distribution in the field domain space；And
Information alert device, is transmitted messages or by the map in the field domain space by text information, voice, to institute
State operator and point out its position and the sensing thing distribution in the field domain space.
2. intelligent prompt system according to claim 1, it is characterised in that the intelligent prompt system
Also include trigger, it is in the instruction that the receiving operator is assigned, and triggering described information prompting device is held
Row prompting operation.
3. intelligent prompt system according to claim 1, it is characterised in that described information processor is certainly
The dynamic information alert device that triggers performs prompting operation.
4. intelligent prompt system according to claim 1, it is characterised in that the intelligent prompt system
Also include target loader, for inputting the target location in the field domain space, and receive the target position
The location information put, then described information processor or server learnt through calculation, the place of the operator
Position is to the guide path of the target location, and described information prompting device is to the operator prompting guiding
Path.
5. intelligent prompt system according to claim 1, it is characterised in that the field domain space is provided with
At least one escape position, the message handler receives the location information of the escape position, then the letter
Breath processor or server learn the position of the operator at least the one of the escape position through calculation
Bar best-effort path；Described information prompting device points out the best-effort path to the operator.
6. intelligent prompt system according to claim 5, it is characterised in that the best-effort path is avoided
The position of other sensing things in the field domain space outside the operator.
7. intelligent prompt system according to claim 1, it is characterised in that the field domain space is to stop
Parking lot；The sensing thing is behaved or vehicle；It is in place that described information processor receives operator's parking when institute
The positioning signal for the sensor put, and after learn the parking spot of the operator automatically through calculation, and automatically
Record the parking spot of the operator.
8. intelligent prompt system according to claim 1, it is characterised in that described information processor
Receive the parking spot of operator reservation.
9. the intelligent prompt system according to claim 7 or 8, it is characterised in that as the operator
When leaving the parking spot, described information processor or server are learnt through calculation, the place of the operator
Bus or train route footpath is sought in position to the parking spot；Described information prompting device seeks car described in pointing out shown operator
Path.
10. intelligent prompt system according to claim 9, it is characterised in that the multiple sensor
It is respectively provided at and is supplied in the field domain space on the path of operator's movement, so as to is the operator
Broadcast the positioning signal to represent position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610272240.6A CN107316490A (en) | 2016-04-27 | 2016-04-27 | Intelligent prompt system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610272240.6A CN107316490A (en) | 2016-04-27 | 2016-04-27 | Intelligent prompt system |
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| CN107316490A true CN107316490A (en) | 2017-11-03 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819965A (en) * | 2012-08-27 | 2012-12-12 | 红门智能科技股份有限公司 | Parking guidance and searching system for parking lot |
| CN103680191A (en) * | 2012-09-03 | 2014-03-26 | 上海中矿电气科技有限公司 | RFID ITO (Internet of Things) parking lot management system |
| CN105224996A (en) * | 2015-08-31 | 2016-01-06 | 湖南汇博电子技术有限公司 | Crowd evacuation method and system |
| CN105243764A (en) * | 2015-08-31 | 2016-01-13 | 湖南汇博电子技术有限公司 | Fire-fighting evacuation system and method thereof |
| CN105513232A (en) * | 2016-02-04 | 2016-04-20 | 珠海智城信息技术有限公司 | Safe emergency dredging method and system |
-
2016
- 2016-04-27 CN CN201610272240.6A patent/CN107316490A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819965A (en) * | 2012-08-27 | 2012-12-12 | 红门智能科技股份有限公司 | Parking guidance and searching system for parking lot |
| CN103680191A (en) * | 2012-09-03 | 2014-03-26 | 上海中矿电气科技有限公司 | RFID ITO (Internet of Things) parking lot management system |
| CN105224996A (en) * | 2015-08-31 | 2016-01-06 | 湖南汇博电子技术有限公司 | Crowd evacuation method and system |
| CN105243764A (en) * | 2015-08-31 | 2016-01-13 | 湖南汇博电子技术有限公司 | Fire-fighting evacuation system and method thereof |
| CN105513232A (en) * | 2016-02-04 | 2016-04-20 | 珠海智城信息技术有限公司 | Safe emergency dredging method and system |
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