CN202841199U - User service system - Google Patents
User service system Download PDFInfo
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- CN202841199U CN202841199U CN 201220358032 CN201220358032U CN202841199U CN 202841199 U CN202841199 U CN 202841199U CN 201220358032 CN201220358032 CN 201220358032 CN 201220358032 U CN201220358032 U CN 201220358032U CN 202841199 U CN202841199 U CN 202841199U
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Abstract
The utility model relates to a user service system, thereby solving problems that the cost is high, operation can not be carried out conveniently, accessible information for users is little, updating is slow and users can not obtain information actively according to the existing system can be solved. An information editing computer completes webpage information files and video information files and sends the information files to a core server for storage; and the information is sent to remote service equipment by a wireless network. The remote service equipment includes a power supply, a control unit, a computer server and routers. There are at least two routers; the first-path router establishes an information transmission channel between the computer server and the core server; and the second-path router enables an information channel between the computer server and a user terminal to be established. The control unit is respectively connected with the computer server, a power supply, the routers and input keys, supplies a working power; the power supply supplies a working power supply for the above-mentioned components; and the control units sends a signal for controlling opening and closing of the working power supply and receives signals of respective states of the components, wherein the signals of the respective states of the components are sent by the components to the control unit.
Description
Technical field:
The utility model is relevant with the system of traffic equipment or business hall or service Room user's obtaining information.
Background technology:
Use at present airborne amusement audio-video system to comprise fixed terminal on the aviation aircraft, total system weight is greater than 200 kilograms, power consumption is high greater than 3000W, complex circuit, investment, content is changed needs the professional to change the device-specific disk, and programme content is few, upgrade slow, maintenance cost is high.
The background technology in business hall or the service Room is the e-advertising terminal, and its content must regularly replace disk by the professional service staff and upgrade, and does not provide the user from the tape terminal Connection Service simultaneously, mainly carries out without interactive One-to-All Broadcast function to the crowd.Broadcasted content is single, upgrades slowly, can not provide personalized service.
The utility model content:
The purpose of this utility model provide a kind of simple in structure, volume is little, low in energy consumption, storage information is many, upgrade fast, cost is low, easy to operate, system turns on and off the teller system that each information channel and power supply can be provided personalized service reliably.
The utility model is achieved in that
The utility model teller system, the info web file finished by information editing's computer and the video information file send the Core server storage, Core server sends to remote service equipment through wireless network, remote service equipment comprises power supply, control unit, computer server and router, router is at least two, the 1st router is set up information transfer channel between computer server and Core server, the 2nd router is set up information channel between computer server and user terminal, control unit respectively with computer server, power supply, router, enter key connects, power supply provides the working power of above-mentioned device, and control unit sends the signal of control working power switch and accepts device to the signal of the separately state of control unit transmission.
Described router is three, the 1st router is the 3G wireless router, the 2nd router is common WIFI wireless router, the 3rd router is the wireless router that possesses the WDS bridge function, between computer server and Core server, set up information transfer channel, power supply is the dc-battery group, and the dc-battery group is connected with charging module, detection module, voltage reduction module, boost module, and charging module is connected with the output of AC-DC converting unit.
Control unit has single-chip microcomputer to pass through the 1st switching circuit to be connected with the dc-battery group, be connected with the 2nd router mains switch by the 2nd switching circuit, be connected with the 1st router mains switch by the 3rd switching circuit, be connected with the 3rd router mains switch by the 4th switching circuit, be connected with the Computer Service appliance mains switch by the 5th switching circuit, the computer server working station indicator connects the input of the 1st optical coupler, the output of the 1st optical coupler connects single-chip microcomputer, 1-4 enter key KEY1-KEY4 connects single-chip microcomputer by the 1st series resistance respectively, connect working power by the 2nd series resistance, single-chip microcomputer connects oscillating circuit.
Detection module is connected with single-chip microcomputer, and the output of voltage reduction module is as the working power of single-chip microcomputer, switching circuit, optical coupler, enter key, and the output of boost module is as the working power of computer server.
Described 1-5 switching circuit has optical coupler, the inducing luminous diode of optical coupler is connected with light-emitting diode with single-chip microcomputer, emitter is connected with transistor base, transistor emitter ground connection, and transistor collector connects optical coupler collector electrode and power supply through relay and the diode of parallel connection.
Described charging module is LM2596, voltage reduction module is that LM2596, boost module are LM2577, detection module is LM393, the AC-DC power supply converting unit is NES-100-18, computer server is the computer server of X86 framework, the 1st router be in emerging AC30 wireless router or the E560 3G of Huawei wireless router.Single-chip microcomputer is PIC16F84A.
The utility model is simple in structure, lightweight, power consumption less, production and maintenance cost is low, the system to store information amount is large, upgrade quick and to upgrade cost low, the user can select information by own terminal, and is easy to use.Applied widely.
The traffic equipment aspect is applicable on the aviation aircraft, such as commercial air flights, in common on the railway, the bullet train, on urban public transport subway, city bus, the length way passenger stock.The passenger utilizes the terminals such as own smart mobile phone, panel computer, notebook by the wireless connections access system.System provides the web page browsing services such as news, e-magazine, e-advertising propaganda materials to the passenger, can provide video request program and video playback service simultaneously.Traffic equipment only need to carry a remote service equipment, and this equipment volume is little, and weight is less than 6 kilograms, and power is less than 60W, and cost only is 1/10th of existing airborne audio-video system.
Native system also can be applicable to the business service Rooms such as communication, bank, government affairs.Client in the business service Room utilizes the terminals such as own smart mobile phone, panel computer, notebook to access native system by wireless connections.The web page browsing services such as news, e-magazine, e-advertising propaganda materials are provided to the passenger, can provide video request program and video playback service simultaneously.Can provide personalized service, easy to use, maintenance cost is low, contains much information, and it is convenient to upgrade, and cost is low.
Switch of the present utility model, shutdown, standby, file are downloaded and are provided access services all only to send instruction by button to the user; shutoff and connection information channel and power supply are fast reliable; can be automatically when battery discharge arrives minimal protection voltage; the server of reliably shutting down computer; normally closing of safeguards system prevents that the battery over-discharge can from causing damaging.
Description of drawings:
Fig. 1 is system architecture diagram.
Fig. 2 is remote service equipment block diagram.
Fig. 3 is remote service circuitry schematic diagram.
Fig. 4 is remote service device software main flow chart.
Fig. 5 is remote service device software the 1st sub-process figure.
Fig. 6 is remote service device software the 2nd sub-process figure.
Fig. 7 is remote service device software the 3rd sub-process figure.
Fig. 8 is remote service device software the 4th sub-process figure.
Fig. 9 is remote service device software the 5th sub-process figure.
Embodiment:
As shown in Figure 1:
Webpage and the video file of preparing into the user finished in information editing's Computerized Editing, is uploaded to Core server by network and deposits.
Remote service equipment enters system boot or shutdown system state by manual button 1 input state 1.
Remote service equipment enters file and downloads or refresh routine by manual button 2 input state 2.Remote service opening of device the 1st is or/and the 3rd router is closed the 2nd router.Connect Core server by wireless network, the info web file in the Core server and video file are downloaded to this equipment computer server internal hard drive deposit.
Remote service equipment enters offline mode by manual button 3 input states 3, and remote service device shutdown the 1st, the 2nd, the 3rd router only keep computer server stand-by operation state.
Remote service equipment enters service mode by manual button 4 input states 4, and remote service device shutdown the 1st, the 3rd router are opened the 2nd router.The user is connected with remote service equipment by the 2nd router.Remote service equipment provides info web and the video file access services consistent with Core server to the user.
Remote service equipment Main Function is: provide the web page browsing services such as news, e-magazine, e-advertising propaganda materials to the user in service range, can provide video request program and video playback service simultaneously.
System comprises following content:
Information editing's computer
Core server
Wireless network
User's handheld terminal and notebook
Special equipment:
Remote service equipment is as shown in Figure 2:
Remote service equipment is mainly finished monitoring, the control work of other unit by control unit.Among the figure:
Be the power supply line road
Be the signal controlling circuit
Be signal transmission line.
The AC-DC power supply converting unit is converted to 17.5v direct current supply with 220v or 110v Alternating Current Power Supply, flow to charging module to batteries charging, battery pack output sends respectively the 1st, the 2nd, the 3rd router, computer server unit to after the buck module is finished the voltage transitions of direct current 17.5v and direct current 5v, 19v.Control unit is controlled the on off operating mode of each router and computer server by the signal controlling circuit.
Computer server is finished with the 1st, the 2nd, the 3rd router by signal transmission line and is connected, and finishes the transmission work of webpage information data.
AC-DC power supply conversion Main Function is that 220v or 110v alternating current are converted to the 17.5v direct current that remote service equipment uses.
The control unit Main Function is the port voltage variable condition of being responsible for the detected state input power, and exports according to the power supply of selected state control computer server, the 1st router, the 2nd router, the 3rd router.
The computer server Main Function is the storage of being responsible for the web page files such as news, e-magazine, e-advertising propaganda materials and video file, upgrade and call service.
The 1st router Main Function is to be responsible for that computer server is set up with the interface channel of 3G network and transmission needs web page files and the video files such as news, e-magazine, e-advertising propaganda materials of renewal.
The 3rd router Main Function is to be responsible for that computer server is set up with the interface channel of WIFI network and transmission needs web page files and the video files such as news, e-magazine, e-advertising propaganda materials of renewal.
The 2nd router Main Function is the interface channel of being responsible for setting up the WIFI network of computer server and user's handheld terminal and notebook, is responsible for transmitting to the user web page files and the video files such as the news of storing in the computer server, e-magazine, e-advertising propaganda materials.
As shown in Figure 3, the remote equipment circuit theory is as follows
Interchange-DC power supply converting unit is linked into respectively port Z1, Z2 with 17.5V direct current both positive and negative polarity.Z1, Z2 port are linked into direct current 17.5v the input of charging module.Z2 port positive pole is connected to LM2596 voltage reduction module input, LM2577 boost module input by the diode of anti-backflow simultaneously.
Voltage reduction module is converted to the 5v direct current with the 17.5v direct current and is supplied to system to use.
Boost module is converted to the 19v direct current with the 17.5v direct current and is supplied to computer server to use.
The anodal output string of charging module is taken over control and is ended behind the diode that flows backwards to the battery pack constant current charge.
Detection module monitoring battery group voltage, in case cell voltage is lower than 10v, detection module DOUT pin is output as high level, and the cell voltage state is flowed to single-chip microcomputer 11 pin.
Single-chip microcomputer 3 pin output to the optical coupler input, and form the loop by external light-emitting and current-limiting resistance ground connection and light LED luminous tube in the optical coupler.Optical coupler induction LED luminance is amplified the rear engage relay actuation coil of driving by triode.The relay adhesive, the engage relay output port, powered battery output, so whether single-chip microcomputer 3 pin high-low level states control battery gives system power supply.
After power supply+5v flowed to single-chip microcomputer 14 pin VDD, single-chip microcomputer 15 pin (OSC2), 16 pin (OSC1) started the standard crystal oscillating circuit.Reset signal flows to 4 pin mclr by resistance, and single-chip microcomputer begins to enter operating state.
Single-chip microcomputer reads 6,7,8,9,10,11 pin voltage statuss according to program, if wherein a pin state is the 0v low level, show state input effectively or the state variation of battery pack and computer server, and be high level or low level according to different pin state adjustment 17,18,1,2,3 pin output voltages.
Single-chip microcomputer 17 pin high level outputs are to the optical coupling isolator input, and form the loop by external light-emitting and current-limiting resistance ground connection and light LED luminous tube in the path.Optical coupling isolator induction LED luminance is amplified the rear engage relay actuation coil of driving by triode.B1, B2 port are connected in the relay adhesive.B1, B2 port start closing switch with computer server and link to each other, so the startup of single-chip microcomputer 17 pin high-low level states control computer server is closed.
Computer server is input to the operating state LED light in the optical coupler by B3, B4 port.Optical coupler opens or closes operating state according to LED illuminating state in the optical coupler with computer server and sends single-chip microcomputer 10 pin to by the B3 port, so that single-chip microcomputer is judged the computer server operating state.
Single-chip microcomputer 1 pin high level output is to the optical coupler input, and forms the loop by external light-emitting and current-limiting resistance ground connection and light LED luminous tube in the optical coupler.Optocoupler induction LED luminance is amplified the rear engage relay actuation coil of driving by triode.F1, F2 port are connected in the relay adhesive.F1, F2 port link to each other with the first router mains switch, so single-chip microcomputer 1 pin high-low level state is controlled the 1st router startup and closed.
Single-chip microcomputer 2 pin high level outputs are to the optical coupler input, and form the loop by external light-emitting and current-limiting resistance ground connection and light LED luminous tube in the optical coupler.Optical coupler induction LED luminance is amplified the rear engage relay actuation coil of driving by triode.E1, E2 port are connected in the relay adhesive.E1, E2 port link to each other with the 3rd router mains switch, so single-chip microcomputer 2 pin high-low level states are controlled the 3rd router startup and closed.
Single-chip microcomputer 18 pin high level outputs are delivered to photosynthetic from the device input by the D1 port, and light LED luminous tube in the optical coupler by external light-emitting and current-limiting resistance ground connection formation loop.Optocoupler induction LED luminance is amplified the rear engage relay actuation coil of driving by triode.D1, D2 port are connected in the relay adhesive.D1, D2 port link to each other with the 2nd router mains switch, so single-chip microcomputer 18 pin high-low level states are controlled the 2nd router startup and closed.
When not triggering state, 5v voltage is carried the 5V high level signal by two level current limiting resistance to single- chip microcomputer 6,7,8,9 pins.When one of them button of KEY1-KEY4 is manually pressed when triggering, one-level current-limiting resistance ground connection wherein, cause single- chip microcomputer 6,7,8,9 wherein a pin be changed to low level signal.Show that button is triggered, the conversion instruction of input service state.
Battery charging module: LM2596 charging module:
Main Function is to batteries charging.
Voltage reduction module:
Main Function is the 17.5v direct current to be converted to the 5v direct current offer single-chip microcomputer, first, second and third router use.
Boost module:
Main Function is the 17.5v direct current to be converted to the 19v direct current offer the computer server use.
Detection module:
Main Function is to detect battery voltage, in case find that voltage is lower than 10v, with the battery low-voltage State-output to single-chip microcomputer.
Interchange-DC power supply converting unit: NES-100-18
Main Function is to be responsible for that 220V or 110V alternating current are converted to the 17.5v DC power supply to offer the charging of rechargable battery group.
Computer server: the X86 framework computer server of standard
Computer server runs under the WINDOWS SERVER2003 systems soft ware.Main Function is the storage of being responsible for the web page files such as news, e-magazine, e-advertising propaganda materials and video file, upgrade and call service
The port link information:
The positive pole of computer server power input mouth, negative pole are connected with Z3, the Z4 port of control unit.LM2577 DC boosting module by control unit provides the 19V direct-current working volts.
Computer server switch (power on) port is connected with B1, the B2 port of control unit.
Positive pole, the negative pole of computer server open state indication (POWER LED) contact pin are connected with B3, the B4 port of control unit.
The port 1 of computer server RJ-45 port 1 and the 3rd router is connected by netting twine.
The port 1 of computer server RJ-45 port 2 and the 2nd router is connected by netting twine.
The usb1 mouth of computer server is connected by the usb Special cable wire with the 1st router usb mouth.
The 1st router: in emerging AC30 3G wireless router or the E560 3G of Huawei wireless router
The 1st router Main Function is to be responsible for that the computer server unit is set up with the interface channel of 3G network and transmission needs the web page files such as news, e-magazine, e-advertising propaganda materials, video of renewal.
The port link information:
The switch of the 1st router power supply is connected with the F1 of control unit, F2 port.
The 3rd router: the various brands standard radio router that possesses the WDS bridge function all can
The 3rd router Main Function is to be responsible for that the computer server unit is set up with the interface channel of WIFI network and transmission needs the web page files such as news, e-magazine, e-advertising propaganda materials, video of renewal.
The port link information:
The switch of the 3rd router power supply is connected with the E1 of control unit, E2 port.
The 2nd router: various brands standard radio router all can
The 2nd router Main Function is the interface channel of being responsible for setting up the WIFI network of computer server unit and user's handheld terminal and notebook, is responsible for transmitting to the user web page files and the video files such as news, e-magazine, e-advertising propaganda materials of computer server element memory storage.
The port link information:
The switch of the 2nd router power supply is connected with the D1 of control unit, D2 port.
As shown in Figure 4, the step of software main flow is described as follows:
Interchange-DC power supply converting unit is converted to alternating current that the charging module that the 17.5v DC power supply offers control unit boosts, voltage reduction module, and single-chip microcomputer is started working, and starts the supply of unit power supply.Whether detection module detects cell voltage excessively low, be, then start the 1st sub-process, no, whether then KEY1 is detected level be low, be, then start the 2nd sub-process, no, whether then KEY2 is detected level be low, be, then start the 3rd sub-process, no, whether then KEY3 is detected level be low, be, then start the 4th sub-process, no, whether then KEY4 is detected level be low, be, then start the 5th sub-process, not no, then get back to detection module and detect whether cell voltage is low.
This flow process Main Function is the main frame that total system operates substantially, and any sub-process rear all getting back to that be finished continued cycle detection in the main flow.
As shown in Figure 5, the step of software the 1st sub-process is described as follows:
Control module detects whether single-chip microcomputer 10 pin states are low level, is, represents that then the computer server unit is in closed condition, and the 1st switching circuit is closed in the output of single-chip microcomputer the 3rd pin, and the total system outage is closed.But single-chip microcomputer has+the 5V power supply.No, then represent that computer server still at work, single-chip microcomputer 17 pin are connected B1, the B2 port disconnected in 2 seconds afterwards, detect whether single-chip microcomputer 10 pin states are low level in 40 seconds, be, represent that then computer server is in the normal shutdown closed condition, the 1st switching circuit is closed in the output of single-chip microcomputer the 3rd pin, and the total system outage is closed.No, then represent computer server normal shutdown failure, computer server still at work, single-chip microcomputer 17 pin are connected B1, the B2 port disconnected in 60 seconds afterwards, to the computer server forced shutdown, detect whether single-chip microcomputer 10 pin states are low level in 60 seconds, be, represent that then the computer server unit is in closed condition, the positive closing success, leap to control unit and close the 1st switching circuit by the output of single-chip microcomputer the 3rd pin, the total system outage is closed.No, then represent computer server positive closing failure, computer server is directly closed the first switching circuit after 60 seconds still at work, total system forces outage to be closed.
This flow process Main Function is to lose in the situation of external communication power supply, and shut down computer to minimal protection voltage time work of server of battery discharge is in the situation that affirmation computer server safety shutdown success disconnects powered battery.The system that ensures computer server normally closes, correctly the closing of keeping system software.Simultaneously also protect battery, prevent that the battery over-discharge can from causing damaging.
As shown in Figure 6, the step of software the 2nd sub-process is described as follows:
Be low when detecting the KEY1 level, after button was pressed, acknowledgement state 1 was transfused to.Single-chip microcomputer disconnects the 1st, the 2nd, the 3rd router power supply.Single-chip microcomputer keeps the computer server power supply, whether the position is low for single-chip microcomputer detection computations machine server indicator light, is, shows that then computer server is closed condition, and single-chip microcomputer was connected the computer server switch 2 seconds by B1, B2 port, start computer server, get back to afterwards main flow.No, show that then computer server is to open operating state, single-chip microcomputer passes through B1, the B2 port was connected the computer server switch 2 seconds, computer server is carried out power-off operation, pass through B3 in 40 seconds, whether B4 Port detecting server led status is low, be, then show the computer server normal shutdown, no, show that then the computer server shutdown is undesired, single-chip microcomputer passes through B1, the B2 port is connected the computer server switch and is kept, computer server is carried out the forced shutdown operation, single-chip microcomputer detects whether the server led status is low, be, then show the success of computer server forced shutdown, get back to main flow.No, then get back to the computer server led status and detect.
This flow process Main Function is by the state input validation to button 1, and computer server is carried out normal boot-strap or power-off operation, in the situation that the normal shutdown failure is carried out the forced shutdown operation to computer server.
As shown in Figure 7, the step of software the 3rd sub-process is described as follows:
Be low when detecting the KEY2 level, after button was pressed, acknowledgement state 2 was transfused to.Enter the 3rd sub-process step.
Single-chip microcomputer is connected the 1st, the 3rd router power supply, disconnects the 2nd router power supply.Get back to main flow after finishing.
This step effect is to connect computer server to be connected with radio channel between the Core server, simultaneously for ensureing that computer server and Core server reliably are connected also synchronously more new data, close the 2nd router, radio link channel between server and the user terminal cuts off computer.
As shown in Figure 8, the step of software the 4th sub-process is described as follows:
Be low when detecting the KEY3 level, after button was pressed, acknowledgement state 3 was transfused to.Enter the 4th sub-process step.
Single-chip microcomputer disconnects the 1st, the 2nd, the 3rd router power supply.Get back to main flow after finishing.
This step effect is to disconnect all radio link channels, closes external wireless connections.Keeping the external radio silence of total system, mainly is for aviation aircraft specific radio silence claimed condition when taking off landing.
As shown in Figure 9, the step of software the 5th sub-process is described as follows:
Be low when detecting the KEY4 level, after button was pressed, acknowledgement state 4 was transfused to.Enter the 5th sub-process step.
Control unit disconnects the 1st, the 3rd router power supply, connects the 2nd router power supply.Get back to main flow after finishing.
This step effect is that the server that cuts off computer is connected with radio channel between the Core server, connects the 2nd router, sets up the radio link channel between computer server and the user terminal, provides access services to the user.
Claims (6)
1.
Teller system, it is characterized in that information editing's computer is finished the info web file and the video information file send the Core server storage, Core server sends to remote service equipment through wireless network, remote service equipment comprises power supply, control unit, computer server and router, router is at least two, the 1st router is set up information transfer channel between computer server and Core server, the 2nd router is set up information channel between computer server and user terminal, control unit respectively with computer server, power supply, router, enter key connects, power supply provides the working power of above-mentioned device, and control unit sends the signal of control working power switch and accepts device to the signal of the separately state of control unit transmission.
2.
Described system according to claim 1, it is characterized in that described router is three, the 1st router is the 3G wireless router, the 2nd router is common WIFI wireless router, the 3rd router is the wireless router that possesses the WDS bridge function, between computer server and Core server, set up information transfer channel, power supply is the dc-battery group, the dc-battery group is connected with charging module, detection module, voltage reduction module, boost module, and charging module is connected with the output of AC-DC converting unit.
3.
System according to claim 1, it is characterized in that control unit has single-chip microcomputer to pass through the 1st switching circuit and is connected with the dc-battery group, be connected with the 2nd router mains switch by the 2nd switching circuit, be connected with the 1st router mains switch by the 3rd switching circuit, be connected with the 3rd router mains switch by the 4th switching circuit, be connected with the Computer Service appliance mains switch by the 5th switching circuit, the computer server working station indicator connects the input of the 1st optical coupler, the output of the 1st optical coupler connects single-chip microcomputer, 1-4 enter key KEY1-KEY4 connects single-chip microcomputer by the 1st series resistance respectively, connect working power by the 2nd series resistance, single-chip microcomputer connects oscillating circuit.
4.
System according to claim 2, it is characterized in that detection module is connected with single-chip microcomputer, the output of voltage reduction module is as the working power of single-chip microcomputer, switching circuit, optical coupler, enter key, and the output of boost module is as the working power of computer server.
5.
System according to claim 3, it is characterized in that described 1-5 switching circuit has optical coupler, the inducing luminous diode of optical coupler is connected with light-emitting diode with single-chip microcomputer, emitter is connected with transistor base, transistor emitter ground connection, transistor collector connects optical coupler collector electrode and power supply through relay and the diode of parallel connection.
6.
System according to claim 2, it is characterized in that described charging module is LM2596, voltage reduction module is that LM2596, boost module are LM2577, detection module is LM393, the AC-DC power supply converting unit is NES-100-18, computer server is the computer server of X86 framework, the first router be in emerging AC30 wireless router or the E560 3G of Huawei wireless router, single-chip microcomputer is PIC16F84A.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358032 CN202841199U (en) | 2012-07-24 | 2012-07-24 | User service system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358032 CN202841199U (en) | 2012-07-24 | 2012-07-24 | User service system |
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| CN202841199U true CN202841199U (en) | 2013-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739807A (en) * | 2012-07-24 | 2012-10-17 | 栾蛟 | User service system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739807A (en) * | 2012-07-24 | 2012-10-17 | 栾蛟 | User service system |
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