CN102354447A - Taxi call reservation system and method thereof based on ZigBee - Google Patents
Taxi call reservation system and method thereof based on ZigBee Download PDFInfo
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Abstract
The invention discloses a taxi call reservation system and a method thereof based on ZigBee. The call system comprises a road end calling terminal, a vehicle-mounted end receiving terminal and a ZigBee network. The calling terminal and the receiving terminal respectively include ZigBee wireless communication modules. Each the ZigBee wireless communication module is connected with a liquid crystal display circuit, a crystal oscillator circuit, a state indicating lamp, a transmit-receive antenna and a button reset circuit. The road end calling terminal and the vehicle-mounted end receiving terminal carry out real-time networking and communication through a ZigBee wireless data transmission network; real-time and rapid transmission is carried out on reservation information sent by a passenger and reservation reception information returned by a taxi are through the ZigBee, so that a direct dialogue between the passenger and the driver is realized. According to the invention, a third party platform is not needed; therefore, not only is a reservation efficiency improved, but also various resources that are needed by the establishment of the third party platform are saved.
Description
Technical field
The present invention relates to a kind of taxi call booking system and method, specifically a kind of taxi call booking system and method based on the ZigBee wireless data transmission network.
Background technology
Taxi is the carrier of urban public service and the window of city image, is the chief component of modern city traffic system.Along with the continuous increase of sustainable development of economy and urban population, cause taxi quantity and frequency of utilization to increase greatly, bring heavy pressure to urban transportation, " difficulty of calling a taxi " becomes " bottleneck " of restriction big and medium-sized cities economic development day by day.At present, it is to wave and get a lift in the roadside that taxi is taken in a lot of areas, causes drawbacks such as energy dissipation (zero load), environmental pollution and traffic congestion.Though taxi call booking system has been brought into use in the city that has; Built up urban taxi uniform dispatching platform based on phone, online order mechanism; But existing call booking system is mostly through GPS (Global Positioning System; GPS) and GPRS (General Packet Radio Service; The general packet radio service technology) network carries out scheduling controlling to taxi; Can't cover the urban area fully, and expense is high, effect and not obvious.In the area that has, the resident takes trip of taxi generally through reserving by phone, and radio system is housed on the taxi; The call center broadcasts passenger demand information; The driver then confirms service goal according to orientation, vehicle place, and the call center gives the user with information feedback after obtaining driver's affirmation immediately.This mode is by the paid management of call center's implementation, and for the mobile passenger of a large amount of urban roads and inapplicable, real-time is poor, does not solve the problem that taxi zero load and citizen take the taxi difficulty at all.Therefore, people press for a kind of easy to use, dependable performance calling system of taxi so that served timely.
Chinese patent publication number CN101520950; Open day on September 2nd, 2009; The name of innovation and creation is called taxi immediate assignment managing system and calls out and assign management method; This application case discloses a kind of passenger of being used for and the taxi wireless system and the method for hiring a car of hiring a car in the ranks; It comprises mobile phone; The local information background service system; The taxi background management system; Built-in GPS calling device of taxi and mobile communications network platform; Mobile phone constitutes two-way wireless communication through the signal transmitting and receiving end of mobile communications network platform and local information background service system and taxi background management system, and taxi background management system signal transmitting and receiving end and n the interior GPS calling device of taxi constitute two-way wireless communication; Chinese patent publication number CN101639910; Open day on February 3rd, 2010; The name of innovation and creation is called taxi intelligent service system; This application case discloses a kind of taxi intelligent service system; It comprises taxi intelligent service terminal (MCU) and at least one service evaluation device; Can effectively hit " clone's car ", improve taxi service quality; Chinese patent publication number CN201413580; Open day on February 24th, 2010; The name of innovation and creation is called the intelligent among a small circle paging system of taxi; This application case discloses a kind of mechanism and has realized the intelligent among a small circle paging of taxi, and it is made up of mobile terminal calling device, reception base station and transponder, control center, vehicle-mounted receiver, onboard navigation system.Above master file weak point is not for to realize the self-organization call booking function between passenger and taxi, and the process of preengaging between passenger and the taxi must realize through third parties' such as " backstage service centre ", " control center " service platform.And third party's platform not only needs a large amount of man power and materials, and efficient is low, the reaction slow, can't fully satisfy the effect that the passenger calls a taxi and the taxi empty wagons utilizes.
Summary of the invention
The object of the invention provides a kind of taxi call booking system and method based on ZigBee with regard to being to overcome the deficiency of above-mentioned prior art; The present invention receives the terminal with road terminal calling terminal and vehicle-mounted termination and is connected in real time through ZigBee wireless data transmission net; The passenger sends subscription information and taxi returns subscription information all through ZigBee network real-time, transmission apace; Make the process of reservation taxi in very short time, accomplish; Not only make things convenient for the passenger, also improved the efficient of taxi carrying.
Realize that the technical scheme that the object of the invention adopts is: a kind of taxi call booking system based on ZigBee comprises:
Road terminal calling terminal is used for networking and communicating by letter with the ZigBee network real-time, for passenger users provides required information interface;
Vehicle-mounted termination is received the terminal, is used for networking and communicating by letter with the ZigBee network real-time, receives the signal that also shows from the ZigBee network, for driver user provides required information interface;
The ZigBee network is used for real-time collecting and handles said road terminal calling terminal and vehicle-mounted termination is received the signal that send at the terminal.
Further, said road terminal calling terminal comprises the ZigBee wireless communication module, and is connected LCD MODULE, status indicator lamp, extended antenna, button and reset circuit above the module; Said vehicle-mounted termination is received the terminal and is comprised the ZigBee wireless communication module, and is connected LCD MODULE, status indicator lamp, extended antenna, button, hummer and reset circuit above the module;
Further; Described ZigBee wireless communication module and liquid crystal display circuit are connected with power module; Described power module comprises 2 power supply units; Power supply unit UP1 converts vehicle power into the 5V stabilized voltage supply; Be the liquid crystal display circuit power supply; Power supply unit UP2 converts the 5V stabilized voltage supply of power supply unit UP1 output into the 3.3V stabilized voltage supply, is the ZigBee powered.
Further; Said ZigBee wireless communication module comprises CC2430/2431 radio transmitting and receiving chip, crystal oscillating circuit and dual-mode antenna; The XTAL1 pin of said crystal oscillating circuit is connected with the XOSC_Q1 of CC2430/2431 radio transmitting and receiving chip, XOSC_Q2 pin; The XTAL2 pin of crystal oscillating circuit is connected with the P2_3 of CC2430/2431 radio transmitting and receiving chip, P2_4 pin, and said dual-mode antenna is connected with RF_P, TXRX_WITCH, the RF_N pin of CC2430/2431 radio transmitting and receiving chip.Said dual-mode antenna is a unbalanced antenna, cooperates the CC2430/2431 radio transmitting and receiving chip to accomplish the transmission and the reception of data.
Further; The acp chip of said liquid crystal display circuit is Chinese display module UP3; Use serial line interface control with the ZigBee wireless communication module; Serial interface is fashionable/and RST reset signal pin meets P1_4; The R/W data-signal meets P1_5; E1, E2 clock signal pin meet P1_6, P1_7 respectively, and RS, LEDA and VDD pin meet operating voltage+5V, LEDK, VSS and PSB pin ground connection.
Further; The acp chip of described reset circuit is watchdog chip MAX705; The output pin that resets of watchdog chip MAX705 links to each other with the RESET_N pin of ZigBee wireless communication module, and the P0_0 pin of ZigBee wireless communication module is used to export feeding-dog signal to watchdog chip.Watchdog chip MAX705 /the MR pin links to each other, is used to automatically reset with/WDO pin.
In addition, the present invention also provides a kind of taxi call booking method based on ZigBee, may further comprise the steps:
Passenger users is used the road terminal calling terminal with the networking of ZigBee network real-time, selects the reservation taxi as required, and will select the information of reservation to be sent to the ZigBee network;
Driver user uses with the vehicle-mounted termination of ZigBee network real-time networking and receives the terminal, and this terminal receives and shows the information from the ZigBee network, and driver user selects to reply to the subscription information of passenger users, and this response message is sent to the ZigBee network;
Further; After said vehicle-mounted termination receipts terminal receives subscription information; If this taxi is in complete vehicle curb condition; Then driver user returns the response message of acceptance reservation and the number-plate number of Ben Che; The passenger receives that through road terminal calling terminal accepting that driver user returns send confirmation behind the subscription information, accomplishes the reservation of taxi.
Because the present invention adopts the ZigBee wireless-transmission network; Integrated use network control technology and embedded technology; Compared with prior art; The invention has the beneficial effects as follows: (1) solves the taxi zero load present situation that attracts customers; Reduced no-load ratio; Improve taxi operation efficient, reduced unloaded fuel consumption and environmental pollution; (2) shortcomings such as expense height that GPS and GPRS network scheduling mode and the mode of reserving by phone exist, real-time difference have been overcome; Especially set up system provided by the invention in the taxi little zone of flowing, can be in time, make things convenient for the supply-demand information between passenger and driver to exchange.(3) use the inventive method and system; Only need passenger and taxi driver to send reservation separately and reply reservation and get final product, realize passenger and driver's direct dialogue, and need not third party's platform; Not only improved the efficient of reservation, and avoided because of building the required various resources of third party's platform.
Description of drawings
Fig. 1 is the taxi call booking system architecture diagram based on ZigBee.
Fig. 2 is a terminal calling terminal structured flowchart.
Fig. 3 is that vehicle-mounted termination is received the terminal structure block diagram.
Fig. 4 is the ZigBee wireless communication module circuit diagram that terminal calling terminal and vehicle-mounted termination are received the terminal.
Fig. 5 is the liquid crystal display circuit figure that terminal calling terminal and vehicle-mounted termination are received the terminal.
Fig. 6 is the reset circuit figure that terminal calling terminal and vehicle-mounted termination are received the terminal.
Fig. 7 is the power module circuitry figure that terminal calling terminal and vehicle-mounted termination are received the terminal.
Fig. 8 is the taxi call booking process flow diagram based on ZigBee.
Fig. 9 is the main program flow chart of terminal calling terminal.
Figure 10 is the packet sending and receiving process flow diagram of terminal calling terminal.
Figure 11 is the main program flow chart that vehicle-mounted termination is received the terminal.
Figure 12 is the packet sending and receiving process flow diagram that vehicle-mounted termination is received the terminal.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment technical scheme of the present invention is further described.
Present embodiment is based on the taxi call booking system of ZigBee, and its structure comprises as shown in Figure 1: ZigBee network, and road terminal calling terminal that is connected with the ZigBee network real-time and taxi termination receipts terminal.Road terminal calling terminal and taxi termination are received terminal being connected through man-machine interaction and the realization of ZigBee network interface and ZigBee network respectively.Wherein road terminal calling terminal structure comprises the ZigBee wireless communication module as shown in Figure 2, and is connected LCD MODULE, status indicator lamp, extended antenna, button and reset circuit above the module; Vehicle-mounted termination is received the terminal as shown in Figure 3, and the taxi termination is received the terminal and comprised the ZigBee wireless communication module, and is connected LCD MODULE, status indicator lamp, extended antenna, button, hummer and reset circuit above the module.
As shown in Figure 4; Used ZigBee wireless communication module comprises CC2430/2431 radio transmitting and receiving chip, crystal oscillating circuit and dual-mode antenna in the present embodiment; Said crystal oscillating circuit XTAL1 links to each other with XOSC_Q1, the XOSC_Q2 pin of CC2430/2431 radio transmitting and receiving chip; XTAL2 links to each other with P2_3, the P2_4 pin of CC2430/2431 radio transmitting and receiving chip, and said dual-mode antenna circuit links to each other with RF_P, TXRX_WITCH, the RF_N pin of CC2430/2431 radio transmitting and receiving chip.Said dual-mode antenna is a unbalanced antenna, uses the requirement of balun with coupling RF I/O impedance, and total is made up of L1, L2, L3 and C4 and a PCB microwave transmission line, and C4 is a decoupling capacitance, to improve the stability of chip operation.The ZigBee wireless communication module is mainly used in the foundation of ZigBee network, the execution of the mutual and system program of ZigBee network data.
As shown in Figure 5; The acp chip of used liquid crystal display circuit is Chinese display module UP3 in the present embodiment; The control of use serial line interface; Serial interface is fashionable/and the RST reset signal meets P14; The R/W data-signal meets P1_5; E1, E2 clock signal meet P1_6, P1_7 respectively, and RS, LEDA, VDD meet operating voltage+5V, LEDK, VSS, PSD ground connection.Liquid crystal display circuit is the interactive interface of passenger users and driver user and taxi call booking system, is used for the correlation behavior information of show Calls reservation.Status indicator lamp shows the work state information of terminal calling terminal and taxi termination receiving apparatus respectively, as networking whether success with whether operate as normal etc.
As shown in Figure 6; The acp chip of the used reset circuit of present embodiment is watchdog chip MAX705; The output pin that resets of watchdog chip MAX705 links to each other with the RESET_N pin of ZigBee wireless communication module, and the P00 pin of ZigBee wireless communication module is used to export feeding-dog signal to watchdog chip.Watchdog chip MAX705 /the MR pin links to each other, is used to automatically reset with/WDO pin.
As shown in Figure 7; The used power module of present embodiment comprises 2 power supply units; Power supply unit UP1 converts vehicle power into the 5V stabilized voltage supply; Be the liquid crystal display circuit power supply; Power supply unit UP2 converts the 5V stabilized voltage supply of power supply unit UP1 output into the 3.3V stabilized voltage supply, is the ZigBee powered.Because it is outdoor that road terminal calling terminal is positioned at, so the power module of road terminal calling terminal adopts the solar-electricity source module, can make full use of sun power, reach effect in energy saving and environmental protection.
Based on the booked call flow process of the taxi call booking system of ZigBee network as shown in Figure 8; The passenger presses " calling " button through the road terminal calling terminal of website, and the positional information at reserve requests information and road terminal calling terminal place is received in the terminal to all the taxi taxi terminations in this station network coverage through the ZigBee Network Transmission; The information of place, explicit reservation terminal website on the display screen at taxi termination receipts terminal, the taxi driver who receives subscription information selects whether to accept reservation, accepts just to send the information of acceptance reservation and the number-plate number of Ben Che through taxi termination receipts terminal.This accepts subscription information is passed back corresponding website again by the ZigBee network road terminal calling terminal, shows the taxi number-plate number of accepting reservation on the display screen of road terminal calling terminal; The passenger receives and accepts to press ACK button behind the subscription information; This confirmation is transferred to the taxi termination once more and receives the terminal; The taxi termination is received on the terminal display screen will show the number-plate number of successfully accepting reservation, and this car driver obtains and rushes for the passenger after the information at once and belong to website service by bus is provided.Because at a distance from road terminal calling terminal of segment distance installation, the information forwarding capability through ZigBee can prolong the Network Transmission distance, so as near do not have the passenger of unload taxi can call out taxi easily and efficiently yet.
It is the taxi call booking system based on ZigBee of core with road terminal calling terminal and taxi termination receipts terminal that the present invention is one.The grid topological structure adopts bunch tree construction, only is made up of telegon and node, and road terminal calling terminal makes up dynamic network as the telegon in the network, and accepts to receive from the taxi termination networking request at terminal; The taxi termination is received the terminal as mobile node, add dynamically or withdraw near the ZigBee network.
The main program flow of road terminal calling terminal main is accomplished following work as shown in Figure 9: system initialization, set up network, allow new node to add, when button is pressed, accomplish corresponding operation and shows the number-plate number of successfully preengaging.Be specially: system accomplishes the initialization of protocol stack and I/O through calling the initialization function, calls the establishment that aplFormNetwork () function is accomplished the ZigBee network after initialization is accomplished; The network information of being created was sent in broadcasting after network creation was accomplished; Road terminal calling terminal just gets into call booking principal function section after accomplishing network creation; The state of the button of detection of call reservation in real time; After key is pressed, reach broadcasting towards periphery and send the positional information at subscription information and road terminal calling terminal place, receive the terminal and receive this reservation message to treat the taxi termination; Then, monitor the acceptance reservation signal that whether has taxi termination receipts terminal to send, then do not continue monitoring if having; Then show the license board information of accepting the reservation taxi if having, the passenger accomplishes the affirmation of reservation this time through the affirmation button of road terminal calling terminal again.
The packet sending and receiving flow process of road terminal calling terminal as shown in figure 10; May further comprise the steps: the value that obtains button according to scanning; Judgement is to send the reserve requests information or the number-plate number of having preengage; After reserve requests information is sent; Whether monitoring has the taxi termination to receive the response message that send at the terminal, has then to carry out the application layer data processing; Then do not judge whether wait timeout, overtime just repeating transmission, otherwise continue monitoring.
The main program flow that the taxi termination is received the terminal is accomplished and worked as follows as shown in figure 11: system initialization, application add network, receive and explicit reservation information, when subscription information, press and accept button and accomplish message and send, show the number-plate number of successfully preengaging etc.Be specially: system sends the adding network information after accomplishing initialization, if having the ZigBee network in the regional extent, then adds network and returns 16 short addresses in current network; If it is unsuccessful to add network, then continue search for networks.After networking successfully, just get into the link of intercepting of wireless data, judge whether the arrival of subscription information, then do not continue to monitor if having through monitoring airborne wireless data packet; Then show the subscription information that receives one by one if having.The driver selects and confirms whether to accept current service, if do not accept then to ignore this message; Send the information and the number-plate number of Ben Che of accepting reservation if accept then to receive the terminal through the taxi termination, the affirmation information of waiting Passengen then, passenger's affirmation information arrive the back and show the number-plate number of accomplishing when time preengaging.
The packet sending and receiving flow process at taxi termination receipts terminal comprises following flow process as shown in figure 12: after adding the ZigBee network, and real-time monitor message.Obtain the value of button according to scanning; Judge whether to send and accept subscription information; As this moment taxi be in idle condition; Driver user receives the terminal transmission through the taxi termination and accepts the information of reservation and the number-plate number of Ben Che; And monitor whether the answer signal that the terminal calling terminal sends from the road from the passenger is arranged, and have and then carry out the application layer data processing, then do not judge whether wait timeout; Overtime just repeating transmission, otherwise continue monitoring.
Claims (10)
1. taxi call booking system based on ZigBee is characterized in that comprising:
Road terminal calling terminal is used for networking and communicating by letter with the ZigBee network real-time, for passenger users provides required information interface;
Vehicle-mounted termination is received the terminal, is used for networking and communicating by letter with the ZigBee network real-time, receives the signal that also shows from the ZigBee network, for driver user provides required information interface;
The ZigBee network is used for real-time collecting and handles said road terminal calling terminal and vehicle-mounted termination is received the signal that send at the terminal.
2. according to the said taxi call booking system of claim 1, it is characterized in that based on ZigBee:
Said road terminal calling terminal comprises the ZigBee wireless communication module, and is connected LCD MODULE, status indicator lamp, extended antenna, button and reset circuit above the module;
Said vehicle-mounted termination is received the terminal and is comprised the ZigBee wireless communication module, and is connected LCD MODULE, status indicator lamp, extended antenna, button, hummer and reset circuit above the module.
3. according to the said taxi call booking system of claim 2 based on ZigBee; It is characterized in that: described ZigBee wireless communication module and liquid crystal display circuit are connected with power module; Described power module comprises 2 power supply units; Power supply unit UP1 converts vehicle power into the 5V stabilized voltage supply; Be the liquid crystal display circuit power supply; Power supply unit UP2 converts the 5V stabilized voltage supply of power supply unit UP1 output into the 3.3V stabilized voltage supply, is the ZigBee powered.
4. according to claim 2 or 3 said taxi call booking systems based on ZigBee; It is characterized in that: said ZigBee wireless communication module comprises the CC2430/2431 radio transmitting and receiving chip; Crystal oscillating circuit and dual-mode antenna; The XTAL1 pin of said crystal oscillating circuit and the XOSC_Q1 of CC2430/2431 radio transmitting and receiving chip; The XOSC_Q2 pin connects; The XTAL2 pin of crystal oscillating circuit and the P2_3 of CC2430/2431 radio transmitting and receiving chip; The P2_4 pin connects, the RF_P of said dual-mode antenna and CC2430/2431 radio transmitting and receiving chip; TXRX_WITCH; The RF_N pin connects.
5. according to the said taxi call booking system based on ZigBee of claim 4, it is characterized in that: said dual-mode antenna is a unbalanced antenna, cooperates the CC2430/2431 radio transmitting and receiving chip to accomplish the transmission and the reception of data.
6. according to the said taxi call booking system of claim 4 based on ZigBee; It is characterized in that: the acp chip of said liquid crystal display circuit is Chinese display module UP3; Use serial line interface control with the ZigBee wireless communication module; Serial interface is fashionable/and RST reset signal pin meets P1_4; The R/W data-signal meets P1_5; E1, E2 clock signal pin meet P1_6, P1_7 respectively, and RS, LEDA and VDD pin meet operating voltage+5V, LEDK, VSS and PSB pin ground connection.
7. according to the said taxi call booking system of claim 6 based on ZigBee; It is characterized in that: the acp chip of described reset circuit is watchdog chip MAX705; The output pin that resets of watchdog chip MAX705 links to each other with the RESET_N pin of ZigBee wireless communication module, and the P00 pin of ZigBee wireless communication module is used to export feeding-dog signal to watchdog chip.
8. according to the said taxi call booking system of claim 7, it is characterized in that based on ZigBee: watchdog chip MAX705 /the MR pin links to each other, is used to automatically reset with/WDO pin.
9. taxi call booking method based on ZigBee is characterized in that may further comprise the steps:
Passenger users is used the road terminal calling terminal with the networking of ZigBee network real-time, selects the reservation taxi as required, and will select the information of reservation to be sent to the ZigBee network;
Driver user uses with the vehicle-mounted termination of ZigBee network real-time networking and receives the terminal; This terminal reception also shows the information from the ZigBee network; The subscription information that driver user sends passenger users is selected to reply, and this response message is sent to the ZigBee network.
10. according to the said taxi call booking method of claim 9 based on ZigBee; It is characterized in that: after vehicle-mounted termination receipts terminal receives subscription information; If this taxi is in complete vehicle curb condition; Then driver user returns the response message of acceptance reservation and the number-plate number of Ben Che; The passenger receives that through road terminal calling terminal accepting that driver user returns send confirmation behind the subscription information, accomplishes the reservation of taxi.
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| CN2011102068861A CN102354447A (en) | 2011-07-22 | 2011-07-22 | Taxi call reservation system and method thereof based on ZigBee |
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| CN103971518A (en) * | 2014-05-27 | 2014-08-06 | 李志常 | Taxi-taking system and method |
| CN105788237A (en) * | 2015-12-28 | 2016-07-20 | 四川大学 | Onboard dynamic information interaction system for picking up passengers |
| CN107133735A (en) * | 2017-04-28 | 2017-09-05 | 大鹏高科（武汉）智能装备有限公司 | A kind of unmanned boat resource share method and device |
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Application publication date: 20120215 |