CN202321837U - Embedded elevator display system based on ARM7 (advanced RISC(reduce instruction set computer) machines) module and FPGA (field programmable gate array) module - Google Patents

Abstract

The utility model discloses an embedded elevator display system based on an ARM7 (advanced RISC(reduce instruction set computer) machines) module and a FPGA (field programmable gate array) module. The system comprises the ARM7 module, the FPGA module, a TFT (thin film transistor) displayer, a synchronous dynamic random access memory and an internal memory, wherein the FPGA module, the TFT displayer, the synchronous dynamic random access memory and the internal memory are connected with the ARM7 module, the ARM7 module controls the FPGA module and takes charge of exchange of image data, the FPGA module takes charge of driving the TFT displayer, the TFT displayer takes charge of displaying system information, and the synchronous dynamic random access memory is used for data temporary storage for the TFT displayer; and the internal memory is a program or a data memory. The embedded elevator display system is excellent in stability and high in resolution, thereby being convenient for elevator users to set the use of the displayer according to actual demands.

Description

Embedded elevator display system based on ARM7 module and FPGA module

Technical field

The utility model relates to a kind of display system, particularly a kind of embedded elevator display system based on ARM7 module and FPGA module (Field-Programmable Gate Array, field programmable gate array).

Background technology

In today of science and technology prosperity, LCDs is widely used in each electronic product.That LCDs has is frivolous, volume is little, low in energy consumption, be easy to advantages such as colorize, image quality is high and do not glimmer; Therefore LCDs has become most important output device in the embedded system, is widely used in fields such as portable instrument, intelligent appliance, hand-held device, consumption electronic product.Yet the control of liquid crystal display is relatively complicated; Especially as TFT (Thin Film Transistor; TFT) this Liquid Crystal Display (LCD), controlling schemes adopt hardware platforms such as DSP, ARM11, X86 to realize the general built-in TFT controller of CPU (central process unit) usually.But these CPU are High Speed System, if adopt DSP, ARM11, X86 to realize that higher system speed possibly cause system design complicated, and increase system power dissipation, cost and time-to-market.And high-speed CPU reliability of applying also merits attention in the elevator field, elevator and people come into contacts with after all, in case the consequence that has an accident is hardly imaginable.High-speed CPU really is applicable to the less relatively of elevator industry in addition, or stability better, but cost is too high.Poor stability only is fit to the consumer electronics industry.

The utility model content

The utility model technical matters to be solved provides a kind of embedded elevator display system based on ARM7 module and FPGA module; Its good stability, high, the simplicity of design of resolution come to be provided with voluntarily the purposes of telltale according to the actual requirements to make things convenient for elevator customer.

For solveing the technical problem; The utility model provides a kind of embedded elevator display system based on ARM7 module and FPGA module; It is characterized in that; Embedded elevator display system based on ARM7 module and FPGA module comprises ARM7 module, FPGA module, TFT telltale, synchronous DRAM, internal storage; FPGA module, TFT telltale, synchronous DRAM, internal storage all are connected with the ARM7 module, the exchange of ARM7 module controls FPGA module and responsible view data, and the FPGA module is responsible for the drive TFT telltale; The TFT telltale is responsible for display system information, and synchronous DRAM is used for the data of TFT telltale and keeps in; Internal storage is program or data memory.

Preferably; Said embedded elevator display system based on ARM7 module and FPGA module also comprises speech play module, keyboard input module, TF card module, perpetual calender module, CAN interface; Speech play module, keyboard input module, TF card module, perpetual calender module, CAN interface all are connected with the ARM7 module; The speech play module is play the relevant voice file according to system requirements; Keyboard input module is provided with the perpetual calender time, regulates the MP3 volume, when the internal storage capacity is not enough, does storage with the TF card module, and the perpetual calender module realizes perpetual calender function accurately; The CAN interface receives the signal that master board is sent, and the signal sent of car control desk, and button signal is sent to master board.

The positive progressive effect of the utility model is: the good stability of the utility model, high, the simplicity of design of resolution, come to be provided with voluntarily the purposes of telltale according to the actual requirements to make things convenient for elevator customer.

Description of drawings

Fig. 1 is the structural representation of the utility model one embodiment.

The specific embodiment

Lift a preferred embodiment below, and combine accompanying drawing to come the clearer the utility model of intactly explaining.

As shown in Figure 1; The utility model comprises ARM7 module, FPGA module, TFT telltale, synchronous DRAM (Synchronous Dynamic Random Access Memory based on the embedded elevator display system of ARM7 module and FPGA module; SDRAM), internal storage, speech play module, keyboard input module, TF card module, perpetual calender module, CAN interface, FPGA module, TFT telltale, synchronous DRAM, internal storage, speech play module, keyboard input module, TF card module, perpetual calender module, CAN interface all are connected with the ARM7 module.The exchange of ARM7 module controls FPGA module and responsible view data, effect below concrete the completion: one, the responsible bus data bag that the CAN interface is sent carries out computing and analysis, and the value that needs show is sent into the FPGA module; Two, be responsible for gathering button signal, according to push button function control FPGA module, the FPGA module is controlled the TFT telltale again and is shown corresponding information; Three, be responsible for the broadcast of speech play module, realize the broadcast of corresponding voice messaging according to the requirement of mainboard; Four, read the data of internal storage and TF card module, corresponding data display is play through the speech play module on the TFT telltale or with the relevant voice data.The FPGA module is responsible for the drive TFT telltale, and the TFT telltale is responsible for display system information, and synchronous DRAM is used for the data of TFT telltale and keeps in; Internal storage is program or data memory, and internal storage can be a NAND FLASH type memory device, and internal storage is deposited picture file, mp3 file etc. as the internal system memory device.The speech play module is play the relevant voice file according to system requirements, such as the file of MP3 format etc.Keyboard input module is provided with RTC (perpetual calender) time, regulates the MP3 volume, carries out a last song/next song etc.When the internal storage capacity was not enough, available TF card module was done storage, can use the data and the program of TF card module or USB flash disk upgrade-system.The perpetual calender module realizes perpetual calender function accurately; The CAN interface receives the signal (comprising the current floor of elevator, service direction, sound broadcast etc.) that master board is sent, and the signal (comprising overload signal, elevator door state etc.) sent of car control desk, and button signal is sent to master board.

During the utility model work, the information that will needed to show by the ARM7 module earlier is loaded among the RAM of ARM7 inside modules in the memory device internally.The CPU of ARM7 module sends its data to the FPGA module afterwards, and FPGA module controls TFT telltale shows corresponding information, and is owing to once possibly not load all data, that the data that loaded not are temporary in synchronous DRAM.The utility model can drive the TFT telltale of 1280*720 and following resolution sizes, realizes the application of TFT telltale in elevator device.ARM7 module controls FPGA module, FPGA module drive TFT telltale realize corresponding the demonstration, in this course, because therefore the disposable conversion that can not accomplish piece image is temporarily stored in pictorial information in the synchronous DRAM.The good stability of the utility model, resolution height, clear display, low in energy consumption, simplicity of design, and can show that more information gives the passenger are like information such as the state of current elevator, clock, perpetual calender, weather forecasts.The utility model not only can be used as traditional car telltale, and can realize the function of advertisement machine, can make things convenient for elevator customer to come to be provided with voluntarily the purposes of telltale according to the actual requirements like this.The utility model is in time with content update, program updates, unlike method for updating system in the past, is connected to computer through serial ports or emulator and upgrades.The utility model adopts USB flash disk, SD card to upgrade; USB flash disk, SD card are inserted on the plank, and plank can be accomplished automatically and upgrade, and practical application is got up quite convenient; Need not be with computer and a pile replication tool to burn program again, and only need a SD card or USB flash disk just can settle.The utility model is that a mainboard is controlled multiple different size TFT telltale (3.5 cun, 4.3 cun, 7 cun, 8 cun, 10.4 cun), and nearly all is that the telltale of a size is controlled with a kind of mainboard on the market.

Though more than described the specific embodiment of the utility model; But those skilled in the art is to be understood that; These only are casehistorys, under the prerequisite of principle that does not deviate from the utility model and essence, can make numerous variations or modification to these embodiments.Therefore, the protection domain of the utility model is limited appended claims.

Claims (2)

1. embedded elevator display system based on ARM7 module and FPGA module; It is characterized in that; Embedded elevator display system based on ARM7 module and FPGA module comprises ARM7 module, FPGA module, TFT telltale, synchronous DRAM, internal storage; FPGA module, TFT telltale, synchronous DRAM, internal storage all are connected with the ARM7 module, the exchange of ARM7 module controls FPGA module and responsible view data, and the FPGA module is responsible for the drive TFT telltale; The TFT telltale is responsible for display system information, and synchronous DRAM is used for the data of TFT telltale and keeps in; Internal storage is program or data memory.

2. the embedded elevator display system based on ARM7 module and FPGA module as claimed in claim 1; It is characterized in that; Said embedded elevator display system based on ARM7 module and FPGA module also comprises speech play module, keyboard input module, TF card module, perpetual calender module, CAN interface; Speech play module, keyboard input module, TF card module, perpetual calender module, CAN interface all are connected with the ARM7 module; The speech play module is play the relevant voice file according to system requirements; Keyboard input module is provided with the perpetual calender time, regulates the MP3 volume, when the internal storage capacity is not enough, does storage with the TF card module, and the perpetual calender module realizes perpetual calender function accurately; The CAN interface receives the signal that master board is sent, and the signal sent of car control desk, and button signal is sent to master board.

Images