CN105679231A - Terminal device access control system and led display system - Google Patents
Terminal device access control system and led display system Download PDFInfo
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- CN105679231A CN105679231A CN201511029604.XA CN201511029604A CN105679231A CN 105679231 A CN105679231 A CN 105679231A CN 201511029604 A CN201511029604 A CN 201511029604A CN 105679231 A CN105679231 A CN 105679231A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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Abstract
The present invention relates to a terminal device access control system. The terminal device access control system comprises an upper computer and a plurality of terminal devices which are in cascade connection, the upper computer is connected with the first-stage terminal device of the plurality of terminal devices via a network, and the plurality of terminal devices are in the cascade connection via a serial bus. The present invention also provides an LED display system using the terminal device access control system. According to the present invention, the upper computer and the first stage terminal device are connected via the network, and the terminal devices are in the cascade connection via the serial bus, so that the system architecture can be simplified under the premise of guaranteeing the communication speed, the remote access and the long-distance transmission control can be supported, the browser operations can be simplified, and the cascade sort is flexible, and accordingly, the positioning and addressing to the terminal devices are convenient.
Description
Technical field
The present invention relates to terminal device access control technology field, relate in particular to a kind of terminal device and visitAsk control system and a kind of LED display system.
Background technology
At LED display control field, the access control scheme of terminal device designs with bus at presentType cascade structure is main. Fig. 1 is a kind of terminal device access control that adopts bus-type cascade structureThe hardware structure schematic diagram of scheme. As can be seen from Figure 1, whole system framework is upper by being provided withThe host computer of machine software and terminal device form, host computer only with cascade in first station terminal equipment (alsoBe terminal device 1) there is physical connection, first host computer enumerates First terminal device, then logicalCrossing First terminal device completes the search of all terminal devices in cascade is enumerated. Wherein, prop upThe bus of holding this bus-type cascade structure is more, for example I2C, RS485/RS422/RS232, CANBus etc., whole system hardware sets up comparatively simple, and software development difficulty is lower, convenient to terminalThe equipment location of sorting, hardware stube cable and interface shape are rich and varied. But, this kind of frameThe shortcoming of structure mainly contains the following aspects: 1) communication speed is lower, is not suitable for large batch of dataTransmission; 2) cannot operated from a distance, conventionally do not support based on B/S (Browser/Server, browser yet/ server mode) the browser access operation of framework; And 3) support the stube cable of this kind of frameworkOften do not support long-distance transmissions, scene is set up convenient not.
Summary of the invention
Therefore, the defect and the deficiency that exist for overcoming prior art, the present invention proposes a kind of always employingThe terminal device access control system of line style cascade structure and a kind of LED display system.
Particularly, a kind of terminal device access control system that the embodiment of the present invention proposes, comprisesMultiple terminal devices of position machine and cascade. Moreover described host computer connects described multiple by networkFirst order terminal device in terminal device, and pass through universal serial bus between described multiple terminal deviceCascade.
In one embodiment of the invention, described host computer is provided with WEB browser, and instituteState on the first order terminal device server program is installed, thereby described in described host computer can pass throughMultiple terminal devices described in the control of WEB browser list window access.
In one embodiment of the invention, described host computer be provided with LED display join screen softPart.
In one embodiment of the invention, between described multiple terminal device, pass through USB cascade.
In one embodiment of the invention, described host computer by the direct-connected described first order of netting twine eventuallyEnd equipment.
In one embodiment of the invention, described in described first order terminal device is used for coming fromAfter the procotol request message of host computer changes into corresponding serial communication protocol request bag and is sent toLevel terminal device and the serial communication protocol respond packet that comes from rear class terminal device is changed into phaseThe procotol response message of answering is sent to described host computer.
In addition, a kind of LED display system that the embodiment of the present invention proposes, comprises host computer, cascadeMultiple terminal devices and connect respectively the LED display of described multiple terminal devices. Moreover,Described host computer by the first order in the described multiple terminal devices of first kind communication mode connection eventuallyEnd equipment, and between described multiple terminal device by the cascade of Second Type communication mode, described theOne type communication mode is different from described Second Type communication mode; Described in each, terminal device isLED display control apparatus and the LED display that drives control to be attached thereto by receiving card.
In one embodiment of the invention, described first kind communication mode is network communication mode,Described Second Type communication mode is universal serial bus mode, and described first order terminal device is in the futureChange into corresponding serial communication protocol request bag from the procotol request message in described host computerBe sent to rear class terminal device and will come from the serial communication protocol respond packet of rear class terminal deviceChange into corresponding procotol response message and be sent to described host computer.
In one embodiment of the invention, described host computer is provided with WEB browser, and instituteState on the first order terminal device server program is installed, thereby described in described host computer can pass throughMultiple terminal devices described in the control of WEB browser list window access.
In one embodiment of the invention, described first kind communication mode is cable network or nothingSpider lines communication mode, described Second Type communication mode is universal serial bus mode, and described serialBus mode is USB universal serial bus mode, I2C universal serial bus mode, RS485 universal serial bus sideFormula, RS422 universal serial bus mode, RS232 universal serial bus mode or CAN universal serial bus mode.
As from the foregoing, the embodiment of the present invention by network connect host computer and first order terminal device andBetween each terminal device, by universal serial bus cascade, therefore can reach one or morely has belowBeneficial effect fruit: a) ensureing, under the prerequisite of communication speed, to have simplified system architecture, required cable is less;B) support remote access, simplified browser operation, to the browser based on B/S framework, only needWant a browser window to get final product the whole terminal devices in access control cascade; C) promoted communicationSpeed, is applicable to large batch of transfer of data (situation of corresponding USB cascade); D) Adoption Network connectsConnect, support long-distance transmissions control; E) reduce hsrdware requirements, reduced system cost; AndF) cascade sequence flexibly, conveniently positions terminal device.
By the detailed description below with reference to accompanying drawing, it is obvious that other side of the present invention and feature become.But it should be known that the only object design for explaining of this accompanying drawing, instead of as model of the present inventionThe restriction of enclosing. Should also be appreciated that, unless otherwise noted, the unnecessary accompanying drawing of drawing to scale, theyOnly try hard to illustrate conceptually structure described herein and flow process.
Brief description of the drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Fig. 1 is a kind of terminal device access control that adopts bus-type cascade structure of the prior artThe hardware structure schematic diagram of scheme.
Fig. 2 is a kind of terminal device bus-type cascade access control scheme hard of the embodiment of the present inventionPart structure realizes block diagram.
Fig. 3 is system cascade corresponding to the cascade of terminal device bus-type shown in Fig. 2 access control schemeAccess logic schematic diagram.
Fig. 4 is the another kind of terminal device bus-type cascade access control scheme of the embodiment of the present inventionHardware configuration is realized block diagram.
Detailed description of the invention
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction withAccompanying drawing is described in detail the specific embodiment of the present invention.
The embodiment of the present invention propose a kind of Network Based+the terminal device bus-type cascade of USB frameworkAccess control scheme, this scheme is Network Based+the framework mode of USB, system architecture is mainly by pacifyingFor example PC of host computer and terminal device that upper computer software is housed form, in host computer and cascadeFirst station terminal equipment (terminal device 1) between by netting twine direct-connected, between subsequent stages terminal device, pass throughUSB cascade, host computer only need be enumerated First terminal device, rear class terminal device (terminal device2～N) enumerate directly by access First terminal device and complete, the therefore whole system of this schemeFramework is simple and communication speed is high, good stability.
Hold above-mentioned, the embodiment of the present invention propose terminal device bus-type cascade access control scheme exampleAs solved the following problem existing in current terminal device bus-type cascade access control scheme:1) promote communication speed, be applicable to large batch of transfer of data; 2) support remote access, can be realThe now operation of the browser access based on B/S framework; And 3), when Adoption Network connects, support long distanceControl from transmission.
Referring to Fig. 2, its a kind of terminal device bus-type cascade access control that is the embodiment of the present inventionThe hardware configuration of scheme is realized block diagram. In Fig. 2, the first station terminal in host computer and USB cascadeDirect-connected by netting twine between equipment (terminal device 1), between subsequent stages terminal device, connect by USB.Host computer completes the enumerating of First equipment (terminal device 1) by cable network, terminal device 1Be responsible for terminal device 2 (as USB from equipment) to enumerate as USB main equipment, terminal is establishedStandby 2 are responsible for terminal device 3 (as USB from equipment) to enumerate as USB main equipment, comply withInferiorly analogize, terminal device (N-1) as USB main equipment be responsible for to terminal device N (as USB fromEquipment) enumerate. Host computer is arranged by First terminal device being sent to broadcast ranked packageOrder, after having sorted, each terminal device 1～N all obtains unique separately device address, afterContinuous access control conducts interviews by designated equipment address. The said equipment 1～N specifically can beIdentical or different LED display controller is for example to have video processing function and sending card functionLED Video Controller as Xi'an Novastar Electronic Technology Co., Ltd. release product NovaProThe LED display control apparatus such as the LED sending card of HD or support 3D Presentation Function, it canCarry the LED casing in the LED display (not shown in Fig. 2) connecting separately by receiving cassette tape(typically being formed by one or more LED lamp plates); Upper computer software is for example Xi'an Nova electronicsThe LED display of Science and Technology Ltd. exploitation is joined screen software LCT, or WEB under B/S frameworkBrowser etc.
As shown in Figure 3, the cascade of terminal device bus-type shown in its Fig. 2 access control scheme is correspondingSystem cascade access logic schematic diagram. Particularly, can adopt in two ways to terminal by networkThe equipment control that conducts interviews, the one, by the WEB browser based on B/S framework, by host computerTake as WEB as WEB browser end and First terminal device (being also terminal device 1)Business device is brought in realization, and wherein upper computer software is for example WEB browser, and terminal device 1 for exampleBe NovaProHD, it possesses WEB remote control function and runtime server under B/S frameworkProgram is HTTPServer program for example, and the terminal of all cascades of browser list window access control is establishedStandby 1～N, the browser window of the terminal device of each cascade is consistent; The 2nd, pass through upper computer softwareSupport Transmission Control Protocol, using host computer as TCP client (TCPClient) and First terminalEquipment (being also terminal device 1) for example, comes as TCP server end (moving TCPServer program)Realize, wherein upper computer software is for example that LED display is joined screen software LCT etc. In addition level,In the terminal device of connection, in the previous terminal device of physical connection as USB main equipment (be alsoUSBHOST), be responsible for rear class terminal device to enumerate and initiate USB request of access; AsShown in Fig. 3, for terminal device 1, it is mainly used in enumerating rear class terminal as USBHOSTEquipment, by TCP/HTTP request message (be also TCP request message or HTTP request message,It is referred to as procotol request message) (a kind of serial communication is assisted to be converted into corresponding USB request bagView request bag) and be sent to rear class terminal device, and (a kind of serial communication is assisted by USB respond packetView respond packet) be converted into corresponding TCP/HTTP response message (being referred to as procotol response message)And be sent to such as LED display of upper computer software and join screen software LCT or WEB browser etc.;Terminal device 2～N after counterpart terminal equipment 1, it is mainly used in enumerating as USBHOSTRear class terminal device and as the input output request of USBSLAVE response USBHOST.
In brief, in the embodiment shown in Fig. 2 and Fig. 3, the cascade of terminal device bus-type is visitedAsking that control system comprises is provided with the host computer of upper computer software and the terminal of N USB cascade is establishedStandby 1～N, is connected and terminal device by cable network between terminal device 1 and described host computerBetween 1～N, carry out cascade by USB.
In other embodiments, as shown in Figure 4, between host computer and terminal device 1, also can lead toCross wireless network and connect the such as wireless network such as WIFI, bluetooth, network communication protocol also can be usedOther agreements such as Zigbee and be not limited to TCP, http protocol; Moreover, terminal device 1～N itBetween be not limited to usb bus cascade, also can adopt other universal serial bus for example I2C, CAN,RS485, RS422, RS232 etc. carry out cascade.
Finally, the embodiment of the present invention also provides and adopts Fig. 2 and any one terminal device bus of Fig. 4The LED display system of type cascade access control system. In the LED of the present embodiment display system,Terminal device 1～N is connected with respectively LED display.
In sum, previous embodiment of the present invention connects host computer by network and first order terminal is establishedBetween standby and each terminal device, by universal serial bus cascade, therefore can reach with next or manyIndividual beneficial effect: a) ensureing, under the prerequisite of communication speed, to have simplified system architecture, required cableLess; B) support remote access, simplified browser operation, to the browser based on B/S framework,Only need a browser window to get final product the whole terminal devices in access control cascade; C) promotedCommunication speed, is applicable to large batch of transfer of data (situation of corresponding USB cascade); D) adopt netNetwork connects, and supports long-distance transmissions control; E) reduce hsrdware requirements, reduced system cost;And f) cascade sequence flexibly, conveniently positions terminal device.
The above, be only preferred embodiment of the present invention, not the present invention done to any shapeRestriction in formula, although the present invention disclose as above with preferred embodiment, but not in order to limitThe present invention, any those skilled in the art, are not departing within the scope of technical solution of the present invention,When utilizing the technology contents of above-mentioned announcement to make a little change or to be modified to the equivalence of equivalent variations realExecuting example, is in every case not depart from technical solution of the present invention content, according to technical spirit of the present invention toAny simple modification, equivalent variations and modification that upper embodiment does, all still belong to the technology of the present inventionIn the scope of scheme.
Claims (10)
1. a terminal device access control system, comprises multiple terminal devices of host computer and cascade;It is characterized in that, described host computer connects the first order end in described multiple terminal device by networkEnd equipment, and between described multiple terminal device, pass through universal serial bus cascade.
2. terminal device access control system as claimed in claim 1, is characterized in that, described inHost computer is provided with WEB browser, and on described first order terminal device, server journey is installedOrder, thus described host computer can be by many described in the control of described WEB browser list window accessIndividual terminal device.
3. terminal device access control system as claimed in claim 1, is characterized in that, described inHost computer is provided with LED display and joins screen software.
4. terminal device access control system as claimed in claim 1, is characterized in that, described inBetween multiple terminal devices, pass through USB cascade.
5. terminal device access control system as claimed in claim 4, is characterized in that, described inHost computer is by the direct-connected described first order terminal device of netting twine.
6. terminal device access control system as claimed in claim 1, is characterized in that, described inFirst order terminal device is for changing into phase by the procotol request message that comes from described host computerThe serial communication protocol request bag of answering is sent to rear class terminal device and will comes from rear class terminal and establishesStandby serial communication protocol respond packet change into corresponding procotol response message be sent to described onPosition machine.
7. a LED display system, comprises multiple terminal devices and the difference of host computer, cascadeConnect the LED display of described multiple terminal devices; It is characterized in that, described host computer is by theOne type communication mode connects the first order terminal device in described multiple terminal device, and described manyBetween individual terminal device by the cascade of Second Type communication mode, described first kind communication mode withDescribed Second Type communication mode difference; Described in each, terminal device is LED display control apparatusAnd drive and control the LED display being attached thereto by receiving card.
8. LED display system as claimed in claim 7, is characterized in that, the described first kindCommunication mode is network communication mode, and described Second Type communication mode is universal serial bus mode, instituteState first order terminal device for the procotol request message that comes from described host computer is changed intoCorresponding serial communication protocol request bag is sent to rear class terminal device and will comes from rear class terminalThe serial communication protocol respond packet of equipment changes into described in corresponding procotol response message is sent toHost computer.
9. LED display system as claimed in claim 7, its feature exists, and described host computer is installedThere is WEB browser, and on described first order terminal device, server program is installed, thus instituteStating host computer can be by multiple terminal device described in the control of described WEB browser list window access.
10. LED display system as claimed in claim 7, is characterized in that, the described first kindType communication mode is cable network or wireless communication mode, and described Second Type communication mode isUniversal serial bus mode, and described universal serial bus mode is that USB universal serial bus mode, I2C serial are totalLine mode, RS485 universal serial bus mode, RS422 universal serial bus mode, RS232 universal serial busMode or CAN universal serial bus mode.
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| CN201511029604.XA CN105679231B (en) | 2015-12-31 | 2015-12-31 | Terminal device access control system and LED display system |
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| CN201511029604.XA CN105679231B (en) | 2015-12-31 | 2015-12-31 | Terminal device access control system and LED display system |
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| CN105679231B CN105679231B (en) | 2019-06-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106941500A (en) * | 2017-04-25 | 2017-07-11 | 西安诺瓦电子科技有限公司 | Many apparatus control methods and system based on browser |
| CN112416839A (en) * | 2020-11-02 | 2021-02-26 | 光华临港工程应用技术研发(上海)有限公司 | System for realizing UART (universal asynchronous receiver transmitter) communication |
| CN113138732A (en) * | 2020-01-16 | 2021-07-20 | 西安诺瓦星云科技股份有限公司 | Multi-display controller system, access control system, and display controller |
| WO2021184291A1 (en) * | 2020-03-19 | 2021-09-23 | 西安诺瓦星云科技股份有限公司 | Data transmission method, apparatus and system |
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| CN105679231B (en) | 2019-06-28 |
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Address after: 710075 DEF101, Zero One Square, Xi'an Software Park, No. 72 Zhangbajie Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Applicant after: Xi'an Nova Nebula Technology Co., Ltd. Address before: 710075 Qinfengge D District 201, Xi'an Software Park, 68 Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Applicant before: Xian Novastar Electronic Technology Co., Ltd. |
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