CN207938044U - Subway station ridership monitoring device and system - Google Patents
Subway station ridership monitoring device and system Download PDFInfo
- Publication number
- CN207938044U CN207938044U CN201820165888.8U CN201820165888U CN207938044U CN 207938044 U CN207938044 U CN 207938044U CN 201820165888 U CN201820165888 U CN 201820165888U CN 207938044 U CN207938044 U CN 207938044U
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- subway station
- ridership
- main controller
- zigbee wireless
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Abstract
The utility model is related to a kind of subway station ridership monitoring device and systems, wherein subway station ridership monitoring device may include main controller, ZigBee wireless transport modules and the counting module for connecting underground ticket checking machine；One end of ZigBee wireless transport modules connects main controller, other end connection count module.The counting module of connection underground ticket checking machine can will detect that the ridership of the into and out subway station of passenger is transferred to main controller.Each entrance passenger in subway station that main controller can receive ZigBee wireless transport module transmission passes in and out data, to realize to subway station ridership Data Analysis Services, ridership at the appointed time section subway station can such as be counted (passenger enters flow in subway station and leaves flow in subway station), it realizes the monitoring to state of riding in subway station, and then improves the monitoring efficiency to subway station ridership.
Description
Technical field
The utility model is related to wireless monitor technical fields, more particularly to a kind of subway station ridership monitoring device
And system.
Background technology
With the development of city size, Urban Transportation contradiction becomes increasingly conspicuous.Subway is safe with it, punctual, quick
Advantage plays increasingly in terms of widening city space, making city quick stereo transportation network and improving urban traffic environment
Big effect.People live and working trip is increasingly dependent on subway trip, and people is made to pour in subway in working peak time
It stands, overstaffed scene occurs, ride comfort level safe to the operating environment of subway station etc. brings serious choose
War brings very big inconvenience to the timely trip of people.And as various regions smart city is built, construction of high-tech traffic system is proposed
Requirements at the higher level, construction of high-tech traffic system need to monitor various regions passenger flow direction in real time, need to unite to subway line ridership naturally
Meter, monitoring, with real-time release hot spot region traffic information, guiding people's trip.
During realization, inventor has found that at least there are the following problems in traditional technology：Traditional subway station is usual
Using personal monitoring, does not have each entrance ridership data cases of real-time release subway, not can display real-time in subway station
Whether state is in the states such as crowded, comfortable by bus, and monitoring efficiency is low.
Utility model content
Based on this, it is necessary to be asked for low to subway station ridership monitoring efficiency in traditional technical solution
Topic provides a kind of subway station ridership monitoring device and system.
To achieve the goals above, on the one hand, the utility model embodiment provides a kind of subway station ridership prison
Survey device, including main controller, ZigBee wireless transport modules and the counting module for connecting underground ticket checking machine；
One end of ZigBee wireless transport modules connects main controller, other end connection count module.
ZigBee wireless transport modules include coordinator and are connected to coordinator and count in one of the embodiments,
Several routers between digital-to-analogue group；
One end of coordinator connects main controller, other end connection count module.
Main controller includes main control chip, input equipment and the first Ethernet chip in one of the embodiments,；
The first end of main control chip connects input equipment, and second end connects the first Ethernet chip, the connection of third end
ZigBee wireless transport modules.
The counting module that module includes several connection underground ticket checking machines is counted in one of the embodiments,；
Each counting module connects main controller by ZigBee wireless transport modules.
Counting module includes counter and the first ZigBee wireless transmitter modules in one of the embodiments,；
One end of counter connects underground ticket checking machine, and the other end connects the first ZigBee wireless transmitter modules.
Counting module further includes the second Ethernet chip of linkage counter in one of the embodiments,.
Further include the display module for being installed in subway station in one of the embodiments,；
Display module connects main controller by ZigBee wireless transport modules.
Display module includes several display equipment for being installed in subway station in one of the embodiments,；
Each display equipment is separately connected main controller by ZigBee wireless transport modules.
Show in one of the embodiments, equipment include display screen and connect display screen the 2nd ZigBee wirelessly send out
Penetrate module.
On the other hand, the utility model embodiment additionally provides a kind of subway station ridership monitoring system, including upper
The subway station ridership monitoring device of position machine and such as above-mentioned any one；
Host computer connects main controller.
A technical solution in above-mentioned technical proposal has the following advantages that and advantageous effect：
One end based on ZigBee wireless transport modules connects main controller, and other end connection count module counts module and connects
It is grounded iron ticket checking machine.The counting module of connection underground ticket checking machine can will detect the ridership of the into and out subway station of passenger
It is transferred to main controller.Each entrance passenger in subway station that main controller can receive ZigBee wireless transport module transmission passes in and out number
According to, such as can cumulative statistics at the appointed time in the subway station of section to realize to subway station ridership Data Analysis Services
Ridership (passenger enters flow in subway station and leaves flow in subway station), realizes the prison to state of riding in subway station
It surveys.ZigBee wireless transport modules can be used to the transmission data between main controller and counting module, and then improve to subway station
The monitoring efficiency of point ridership.
Description of the drawings
By being more particularly described for the preferred embodiment of the utility model shown in attached drawing, addressed on the utility model
Other purposes, feature and advantage will become more fully apparent.Identical reference numeral indicates identical part in whole attached drawings, and
Actual size equal proportion scaling is not pressed deliberately and draws attached drawing, it is preferred that emphasis is the purport of the utility model is shown.
Fig. 1 is the structural schematic diagram of subway station ridership monitoring device in one embodiment；
Fig. 2 is the structural schematic diagram of ZigBee wireless transport modules in one embodiment；
Fig. 3 is the topological schematic diagram of ZigBee wireless transport modules in one embodiment；
Fig. 4 is the structural schematic diagram of main controller in one embodiment；
Fig. 5 is the structural schematic diagram of count module group in one embodiment；
Fig. 6 is the structural schematic diagram of counting module in one embodiment；
Fig. 7 is the structural schematic diagram of subway station ridership monitoring device in another embodiment；
Fig. 8 is the structural schematic diagram of display module in one embodiment；
Fig. 9 is the structural schematic diagram of subway station ridership monitoring device in another embodiment；
Figure 10 is the structural schematic diagram that subway station ridership monitors system in one embodiment.
Specific implementation mode
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can in many different forms come in fact
It is existing, however it is not limited to embodiment described herein.Make public affairs to the utility model on the contrary, purpose of providing these embodiments is
It is more thorough and comprehensive to open content.
It should be noted that when an element is considered as " connection " another element, it can be directly to separately
One element and it is in combination be integrated, or may be simultaneously present centering elements.Term as used herein " installation ", " one
End ", " other end " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model
The normally understood meaning of technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more relevant Listed Items.
Low to subway station ridership monitoring efficiency in traditional technical solution in order to solve the problems, such as, this practicality is new
Type provides a kind of subway station ridership monitoring device embodiment；Fig. 1 is subway station ridership in one embodiment
The structural schematic diagram of monitoring device.As shown in Figure 1, the subway station ridership monitoring device may include main controller 110,
ZigBee wireless transport modules 120 and the counting module 130 for connecting underground ticket checking machine.
One end of ZigBee wireless transport modules 120 connects main controller 110, other end connection count module 130.
Wherein, main controller 110 can have complete receiving and transmitting signal, execute signal, and exchange the behaviour such as information with peripheral hardware
The processor of work.ZigBee wireless transport modules 120 refer to being based on ZigBee wireless transmission protocols, realization wirelessly transmitting data
Wireless module.Underground ticket checking machine refers to being installed in the ticket checking machine at the inlet and outlet channel of subway station.Count what module 130 referred to
It is that there are multiple modules for counting port；Count module 130 connect underground ticket checking machine, can to passenger pass in and out underground ticket checking machine when into
Row counts.
Specifically, one end of ZigBee wireless transport modules 120 connects main controller 110, ZigBee wireless transport modules 120
Signal transmission can be carried out between main controller 110, i.e. main controller 110 can transmit a signal to ZigBee wireless transport modules
120, it also can receive the signal that ZigBee wireless transport modules 120 are sent.The other end of ZigBee wireless transport modules 120 connects
Count module 130, ZigBee wireless transport modules 120 can carry out signal transmission between module 130 counting, i.e. ZigBee without
Line transmission module 120, which can receive, counts the enumeration data that module 130 transmits, and enumeration data is transferred to main controller 110；
The signal that main controller 110 transmits can be also sent to by ZigBee wireless transport modules 120 counts module 130.Module 130 is counted to connect
It is grounded iron ticket checking machine, counts when module 130 can pass in and out underground ticket checking machine to passenger and counts, and enumeration data is passed through
ZigBee wireless transport modules 120 are transferred to main controller 110.
In above-described embodiment, one end of ZigBee wireless transport modules connects main controller, other end connection count module；Meter
Digital-to-analogue group connects underground ticket checking machine.The counting module of connection underground ticket checking machine can will detect the into and out subway station of passenger
Ridership is transferred to main controller.Main controller can receive each entrance passenger in subway station of ZigBee wireless transport module transmission
Data are passed in and out, to realize to subway station ridership Data Analysis Services, as can be cumulative statistics at the appointed time section
Ridership (passenger enters flow in subway station and leaves flow in subway station), realizes to state of riding in subway station in iron station
Monitoring.ZigBee wireless transport modules can be used to the transmission data between main controller and counting module, and then improve over the ground
The monitoring efficiency of iron website ridership.
In one embodiment, as shown in Fig. 2, being the structural representation of ZigBee wireless transport modules in one embodiment
Figure.Wherein, ZigBee wireless transport modules may include coordinator 210 and be connected between coordinator 210 and counting module
Several routers 220.One end of coordinator 210 connects main controller, other end connection count module.
Wherein, coordinator 210 refers to network management device in ZigBee wireless-transmission networks.Router 220 refers to
It is a kind of to support associated equipment, it can realize the message forwarding capability of other nodes.Preferably, ZigBee wireless transport modules can
Including a coordinator 210 and several routers 220.
Specifically, one end of coordinator 210 can wired connection main controller, can also be wirelessly connected main controller.Coordinator 210
The other end can be wirelessly connected counting module.Each router 220 can be wirelessly connected counting module respectively.To which main controller can be by signal
It is transferred to counting module by coordinator 210, the enumeration data that can be also transmitted by 210 count pick up module of coordinator.Master control
Signal can also be passed sequentially through to coordinator 210 for device and router 220 is transferred to counting module, can also pass sequentially through router 220
With the enumeration data of 210 count pick up module of coordinator transmission.
Preferably, one end wired connection main controller of coordinator 210, one end such as coordinator 210 are (asynchronous by RS232
Transmission standard interface) connection main controller.
In above-described embodiment, based on several routers 220 being connected between coordinator 210 and counting module；Coordinator
210 one end connects main controller, other end connection count module.All standing is realized to each underground ticket checking machine in subway station
Monitoring, and then realize the monitoring that subway station is passed in and out to passenger, improve the monitoring efficiency to subway station ridership.
In one embodiment, as shown in figure 3, the topology for ZigBee wireless transport modules in one embodiment is illustrated
Figure.Wherein, ZigBee wireless transport modules include coordinator 310, several routers 320 and 330 endpoints.
Specifically, main controller can be connect by serial ports RS232 with the coordinator 310 in ZigBee wireless transport modules, meter
Digital-to-analogue group wirelessly can exchange information by the endpoint 330 in ZigBee wireless transport modules with coordinator 310；Count module
Group also wirelessly can exchange information by the endpoint 330 in ZigBee wireless transport modules with router 310.And then it realizes
Ridership monitoring to each entrance in subway station.
In one embodiment, as shown in figure 4, being the structural schematic diagram of main controller in one embodiment.Main controller includes
Main control chip 410, input equipment 420 and the first Ethernet chip 430.
The first end of main control chip 410 connects input equipment 420, and second end connects the first Ethernet chip 430, the
Three ends connect ZigBee wireless transport modules.
Wherein, main control chip 410 refers to that the core component of main controller, main control chip 410 can be microcontrollers,
Can be ARM (Advanced RISC Machines：Advanced Reduced Instruction Set processor).Input equipment 420 is referred to master
The equipment for controlling chip 410 input data and information, input equipment 420 can be with button.First Ethernet chip 430 can be
Network interface chip with connection internet function.
Specifically, the first end of main control chip 410 connects input equipment 420, and second end connects the first Ethernet interface core
Piece 430, third end connect ZigBee wireless transport modules.Main control chip 410 can receive the signal of input equipment transmission, and pass through
ZigBee wireless transport modules transmit the signal to counting module.Main control chip 410 connects the first Ethernet chip
430, so as to connect internet, expand convenient for device.
In one embodiment, as shown in figure 5, being the structural schematic diagram of count module group in one embodiment.Wherein, it counts
Module 510 may include the counting module 512 of several connection underground ticket checking machines.Each counting module 512 is wirelessly transferred by ZigBee
Module connects main controller.
Wherein, counting module 512 can be the module device for having tally function.
Specifically, a counting module 512 can connect a tableland iron ticket checking machine, counting module 510 can respectively to passenger into
Underground ticket checking machine and while going out underground ticket checking machine, are counted, and can enumeration data be transferred to main controller, to realize to subway
The monitoring of the disengaging passengers quantity of each underground ticket checking machine in website, and then realize the statistics to subway station ridership
Monitoring, improves the monitoring efficiency to subway station ridership.
In one embodiment, as shown in fig. 6, being the structural schematic diagram of counting module in one embodiment.Wherein, it counts
Module includes counter 610 and the first ZigBee wireless transmitter modules 620.One end of counter 610 connects underground ticket checking machine, separately
One end connects the first ZigBee wireless transmitter modules 620.
Specifically, one end of counter 610 connects underground ticket checking machine, and the other end connects the first ZigBee wireless transmitter modules
620.Counter 610 can be counted to passenger into underground ticket checking machine and when going out underground ticket checking machine respectively, and can be by enumeration data
It is transferred to main controller by the first ZigBee wireless transmitter modules 620, to realize to each underground ticket checking in subway station
The monitoring of the disengaging passengers quantity of machine, and then the statistical monitoring to subway station ridership is realized, it improves to subway station
The monitoring efficiency of point ridership.
In one embodiment, as shown in Figure 6, wherein counting module further includes the second Ethernet of linkage counter 610
Interface chip 630.
Specifically, the second Ethernet chip 630 can be the network interface chip with connection internet function.Counter
610 the second Ethernet chips 630 of connection expand so as to connect internet convenient for device.
In one embodiment, as shown in fig. 7, being the knot of subway station ridership monitoring device in another embodiment
Structure schematic diagram.Wherein, ridership monitoring device in subway station further includes being installed in the display module 740 of subway station.Display
Module 740 connects main controller 710 by ZigBee wireless transport modules 720.
Specifically, it is based on display module 740 and main controller 710, display module is connected by ZigBee wireless transport modules 720
740 can receive the monitoring data that main controller 710 transmits by ZigBee wireless transport modules 720, and be shown to monitoring data
Show.It should be noted that monitoring data refer to what main controller 710 to the enumeration data that receives generate after analyzing processing
Data, wherein main controller can be used traditional analysis and processing method and generate monitoring data.
In above-described embodiment, main controller 710 is connected by ZigBee wireless transport modules 720 based on display module 740, from
And can real-time display subway station ridership data, and can show in subway station ride state whether be in it is crowded or easypro
The states such as suitable.Be conducive to shunt passenger in passenger's peak phase correct guidance.
In one embodiment, as shown in figure 8, being the structural schematic diagram of display module in one embodiment.Display module
810 include several display equipment 812 for being installed in subway station.Each display equipment 812 passes through ZigBee wireless transport modules point
Main controller is not connected.
Specifically, respectively display equipment 812 is separately connected main controller by ZigBee wireless transport modules.To which each display is set
Standby 812 can receive the monitoring data that main controller 710 transmits by ZigBee wireless transport modules, and be shown to monitoring data
Show, so can real-time display subway station ridership data, convenient for passenger's peak phase correct guidance shunt passenger.
In one embodiment, display equipment includes display screen and connects the 2nd ZigBee wireless transmission moulds of display screen
Block.
Wherein, display screen can be LED (Light Emitting Diode：Light emitting diode) display screen, can also be
LCD(Liquid Crystal Display：Liquid crystal display) display screen.Preferably, display screen is LED display.
Specifically, display screen can receive the monitoring data of main controller transmission by the 2nd ZigBee wireless transmitter modules, and
Monitoring data are shown.
In one embodiment, as shown in figure 9, being the knot of subway station ridership monitoring device in another embodiment
Structure schematic diagram.Wherein, ridership monitoring device in subway station may include ZigBee wireless transport modules and connection ZigBee
The main controller of wireless transport module counts module, display module.Main controller may include embedded microprocessor (main control chip),
And the network access module (the first Ethernet chip) of connection embedded microprocessor, button (input equipment), display
Screen；ZigBee wireless transport modules may include coordinator and connect router, the endpoint of coordinator；Module is counted to may include
Connect automatic ticket checker (underground ticket checking machine) counting module and the network access module of connection count module, ZigBee without
Line transmitting module；Display module may include that the LED of ZigBee wireless transmitter modules and connection ZigBee wireless transmitter modules is aobvious
Display screen (LED display with may include LED outdoor-screens and LED face).Embedded microprocessor can pass through serial ports in main controller
Coordinator in RS232 connection ZigBee wireless networks, counting module can be by the endpoint in ZigBee wireless networks with wireless
Mode exchanges information with ZigBee-network.
Specifically, the counting module connection automatic ticket checker of module is counted, and will be obtained by ZigBee wireless transmitter modules
The enumeration data got is sent to main controller.Main controller can be placed in subway station with the coordinator in ZigBee wireless transport modules
Interior administrative office；The placement spacing of router in ZigBee wireless sensor networks can be by each entrance of subway station and subway station administration
The distance at place determines that (effective distance of transmission of the router in the case where there is obstacle is 30 meters, can in the case of accessible
Reach 70 meters)；LED outdoor-screens can be mounted on each entrance of subway station, so that the passenger into subway station is known in subway station in time and multiply
Car state information, LED face can be mounted on passenger in subway station and shunt necessary place, transfer information and circuit in station are provided and multiplied
Vehicle directional information.
In order to more fully illustrate that the monitoring efficiency to subway station ridership has can be improved in the utility model embodiment.
It is the concrete operating principle of the utility model embodiment subway station ridership monitoring device below：
Based on ZigBee wireless transport modules connection main controller, count module and display module.Successively open ZigBee without
Coordinator, router in line transmission module and endpoint, establish ZigBee wireless-transmission networks；Main controller is opened, is received
The data of ZigBee wireless transport modules transmission, confirmation communicate successfully with ZigBee-network；Count module group acknowledge and ZigBee nets
Network networks successfully；4, display module confirms network successfully with ZigBee-network, and passenger rides status information in display subway station.It is main
Handshake mechanism can be established between control device and counting module, after counting module transmission enumeration data, such as confiscates the confirmation of main controller
Information is then retransmitted, it is ensured that the transmitting of information, disengaging subway station number can be known by automatic ticket checker by counting module, and can
Website entrance number of people entering is sent to main controller by ZigBee wireless transmitter modules.
It is respectively come in and gone out number of people entering by being installed in each entrance counting module real-time statistics of subway station, and wireless by ZigBee
Transmitting module is sent to main controller, what main controller received that each counting module sends enter the station with outbound number (such as website A, B, C into
Outlet), number is respectively imported and exported by main controller System, calculates in subway station remaining people's number of passengers, and by information shape
State is sent to display module by main controller, and shows in subway station that passenger rides state by display module, will be accurate with prompt
It is standby to take Metro Passenger, convenient for shunting passenger in passenger's peak phase correct guidance, while conversion in station is multiplied into letter by main controller
The information such as breath, direction of traffic information, current site are shown by the display screen in display module, improve passenger's transfer effect in station
Rate improves the transport efficiency of Metro Passenger.
In above-described embodiment, based on ZigBee wireless transport modules connection main controller, module and display module are counted.It can be with
The into and out subway station ridership of real-time statistics specified time interval passenger, and can estimate state of riding in subway station, it can
In website related instruction information guidance passenger is issued to ride, and flow statistical accuracy is high, installation and maintenance is convenient, it is cheap,
It is simple in structure.
Low to subway station ridership monitoring efficiency in traditional technical solution in order to solve the problems, such as, this practicality is new
Type additionally provides a kind of subway station ridership monitoring system embodiment；Figure 10 is subway station passenger flows in one embodiment
Measure the structural schematic diagram of monitoring system.As shown in Figure 10, include the subway station passenger of host computer and such as above-mentioned any one
Flow monitoring device；Host computer connects main controller.
Low to subway station ridership monitoring efficiency in traditional technical solution in order to solve the problems, such as, this practicality is new
Type additionally provides a kind of subway station ridership monitoring system embodiment；Figure 10 is subway station passenger flows in one embodiment
Measure the structural schematic diagram of monitoring device.As shown in Figure 10, subway station ridership monitoring system may include host computer and
Such as the subway station ridership monitoring device of above-mentioned any one；Host computer connects main controller.
Specifically, host computer can be personal computer, laptop, smart mobile phone, tablet computer or it is portable can
Wearable device etc..The main controller that subway station ridership monitoring device is connected based on host computer, so as to remote by host computer
Journey monitors the real time data of the ridership of subway station, improves the monitoring efficiency to subway station ridership.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of subway station ridership monitoring device, which is characterized in that including main controller, ZigBee wireless transport modules,
And the counting module of connection underground ticket checking machine；
One end of the ZigBee wireless transport modules connects the main controller, and the other end connects the counting module.
2. ridership monitoring device in subway station according to claim 1, which is characterized in that the ZigBee is wirelessly passed
Defeated module include coordinator and be connected to the coordinator and it is described count module between several routers；
One end of the coordinator connects the main controller, and the other end connects the counting module.
3. ridership monitoring device in subway station according to claim 1, which is characterized in that the main controller includes master
Control chip, input equipment and the first Ethernet chip；
The first end of the main control chip connects the input equipment, and second end connects first Ethernet chip, the
Three ends connect the ZigBee wireless transport modules.
4. ridership monitoring device in subway station according to claim 1, which is characterized in that the counting module includes
The counting module of several connection underground ticket checking machines；
Each counting module connects the main controller by the ZigBee wireless transport modules.
5. ridership monitoring device in subway station according to claim 4, which is characterized in that the counting module includes
Counter and the first ZigBee wireless transmitter modules；
One end of the counter connects the underground ticket checking machine, and the other end connects the first ZigBee wireless transmitter modules.
6. ridership monitoring device in subway station according to claim 5, which is characterized in that the counting module also wraps
Include the second Ethernet chip for connecting the counter.
7. the subway station ridership monitoring device according to claim 1 to 6 any one, which is characterized in that also wrap
Include the display module for being installed in subway station；
The display module connects the main controller by the ZigBee wireless transport modules.
8. ridership monitoring device in subway station according to claim 7, which is characterized in that the display module includes
Several display equipment for being installed in the subway station；
Each display equipment is separately connected the main controller by the ZigBee wireless transport modules.
9. ridership monitoring device in subway station according to claim 8, which is characterized in that the display equipment includes
2nd ZigBee wireless transmitter modules of display screen and the connection display screen.
10. a kind of subway station ridership monitors system, which is characterized in that including host computer and such as the claims 1
To the subway station ridership monitoring device described in 9 any one；
The host computer connects the main controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820165888.8U CN207938044U (en) | 2018-01-30 | 2018-01-30 | Subway station ridership monitoring device and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820165888.8U CN207938044U (en) | 2018-01-30 | 2018-01-30 | Subway station ridership monitoring device and system |
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| CN207938044U true CN207938044U (en) | 2018-10-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109345132A (en) * | 2018-10-16 | 2019-02-15 | 上海市城市建设设计研究总院（集团）有限公司 | Shared bicycle dynamic quota control system and its operation method |
-
2018
- 2018-01-30 CN CN201820165888.8U patent/CN207938044U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109345132A (en) * | 2018-10-16 | 2019-02-15 | 上海市城市建设设计研究总院（集团）有限公司 | Shared bicycle dynamic quota control system and its operation method |
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Granted publication date: 20181002 Termination date: 20220130 |