CN201438331U

CN201438331U - Handheld checking and fee collection integrative machine

Info

Publication number: CN201438331U
Application number: CN2009201725614U
Authority: CN
Inventors: 林杰华; 张斌; 刘汉斐; 宋华茂; 李冬森; 余传兵; 苏波; 吕锐; 李勤; 杜荣良; 李葆; 张礼莉
Original assignee: ANHUI CAIYI ELECTRONIC TECHNOLOGY Co Ltd; Hefei University of Technology; Liuan Power Supply Co of State Grid Anhui Electric Power Co Ltd
Current assignee: ANHUI CAIYI ELECTRONIC TECHNOLOGY Co Ltd; State Grid Corp of China SGCC; Hefei University of Technology; Liuan Power Supply Co of State Grid Anhui Electric Power Co Ltd
Priority date: 2009-06-15
Filing date: 2009-06-15
Publication date: 2010-04-14
Anticipated expiration: 2019-06-15

Abstract

A handheld machine integrated with meter checking and fee collection is characterized in that an ARM processor is taken as the core, and the machine is integrated with a Nand Flash, a NorFlash, an SDRAM, an LED screen controller, a USB interface chip, a press key scanning module, an infrared communication module and a wireless transmitting receiving module; the infrared communication module is used for automatically checking an infrared kilowatt hour meter; and the wireless transmission module performs wireless signal exchange with a wireless keyboard and a wireless printer which are provided with corresponding wireless receiving modules, thereby realizing the wireless input and printing functions. The machine realizes the double functions of meter checking and off-line fee collection.

Description

A kind of hand-held is copied and accepted all-in-one

Technical field

The utility model be applied in power industry check meter and the charge operation flow process in.More specifically say so a kind of can satisfy simultaneously to check meter and charge two kinds require handheld device.

Background technology

Power industry still generally adopts at present the on-the-spot situation of checking meter and setting up an office the window charge nearby, makes a copy of of that month power consumption by the papery card of checking meter; And then by the manual entry mode card information typing marketing system of will checking meter.This mode will inevitably cause the person's of checking meter workload big, and the cost height easily produces a series of problems such as secondary typing mistake.

The meter reader function singleness of using can only realize the mensal task of checking meter at present.In the idle periods of checking meter, meter reader is in idle state, and plant factor is low.

In the vast rural area of China, because the client is far away apart from cities and towns, it is very inconvenient to pay dues, and in order to carry out customer service, electric company requires power supply station's charge of must setting up an office nearby, and employing networked fee collection cost is higher.

The utility model content

The utility model is for avoiding above-mentioned existing in prior technology problem, providing a kind of hand-held to copy and accept all-in-one, is core with 32 embedded ARM processor, integrated infrared and radio meter register function, the dual-use function that realization is checked meter and off line is charged.

The utility model technical solution problem adopts following technical scheme:

The design feature that the utility model hand-held is copied and accepted all-in-one is to be core, integrated NandFlash storer, NorFlash program storage, SDRAM data-carrier store, LCD screen controller, USB interface chip, key scan module, infrared communication module and wireless transmit receiver module with 32 arm processors; Wherein:

The NandFlash storer is as user's meter reading data and charge data storer;

The NorFlash storer is as operating system and application storage district;

The SDRAM storer is as the service data storer;

The LCD screen controller is used to drive STN interface liquid crystal display data-signal and provides screen to show the bias voltage and the high pressure backlight of needs;

USB interface is used for the data transmission between all-in-one and PC;

The key scan module is used to respond user's input;

Infrared communication module is used for infrared ammeter is carried out automatic data logging;

Wireless transmitter module carries out the wireless signal exchange with Wireless Keyboard with respective wireless receiver module and wireless printer, realizes wireless input and printing function.

The design feature that the utility model hand-held is copied and accepted all-in-one is that also described NandFlash storer, NorFlash storer, SDRAM storer, USB interface chip and arm processor link together by 32 bit address buses and 16 bit data bus; The key scan module is exported the square wave sweep signals, is detected the button trigger pips by 4 external interrupt mouths by 6 universal I/O ports, and to sending key information to operating system; Infrared communication module is connected with the universal serial port UART1 of ARM; Connected mode between wireless module and the ARM is synchronous serial bus SPI; Wireless module is operated on the open 2.4G frequency range.

Compared with the prior art, the utility model beneficial effect is embodied in:

1, the utility model is a core with 32 embedded ARM processor, integrated infrared and radio meter register function, the dual-use function that realization is checked meter and off line is charged.

2, the utility model has been avoided that the person's of checking meter manual metering workload is big, cost is high, has easily been produced a series of problems of secondary typing mistake.

3, the dual-use function of the utility model hand-held set is improved plant factor, reduces equipment investment.

4, the utility model can greatly make things convenient for the client, and improving electric power enterprise is user's service level and service quality.

Description of drawings

Fig. 1 is the utility model schematic block circuit diagram.

Fig. 2 is the utility model power application industry operation synoptic diagram of checking meter.

Fig. 3 is applied in power industry charge operation synoptic diagram for the utility model.

Below pass through embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings:

Embodiment

Referring to Fig. 1, present embodiment is as handheld device, is to be core, integrated NandFlash storer, NorFlash program storage, SDRAM data-carrier store, LCD screen controller, USB interface chip, key scan module, infrared communication module and wireless transmit receiver module with 32 arm processors.

NandFlash is the main storer of user's meter reading data and charge data; NorFlash is used as the memory block of hand-held set operating system and application program; Data-carrier store when SDRAM is program run; The LCD screen controller is used to drive STN interface liquid crystal display data-signal and provides screen to show the bias voltage and the high pressure backlight of needs; USB interface is used for data transmission between all-in-one and the PC for all-in-one provides the interface that meets USB 1.1 standards; The key scan module is used to respond user's input; Infrared communication module is used for the infrared ammeter that meets DL/T 645-1997 standard promulgated by the ministries or commissions of the Central Government is carried out automatic data logging; Wireless transmitter module and Wireless Keyboard and wireless printer swap data with equal modules are realized wireless input and printing function.NandFlash, NorFlash, SDRAM, USB interface chip and arm processor link together by 32 bit address buses and 16 bit data bus; The key scan module detects the button trigger pip by 6 universal I/O port output square wave sweep signals by 4 external interrupt mouths, goes to the shake back to send press key message to operating system through software then; Infrared communication module then is connected with the universal serial port (UART) 1 of ARM; Connected mode between wireless module and the ARM is synchronous serial bus (SPI).

The utility model and wireless printer and Wireless Keyboard are operated on the open 2.4G frequency range, and exchanges data is followed the wireless communication protocol standard.

In concrete the enforcement, as shown in Figure 1, arm processor S3C44BOX system clock adopts the starting of oscillation of external 10MHz crystal, arrives 48MHz with inner PLL frequency multiplication again.Arm processor is operated under two kinds of clock frequencies, and under the user key-press preprocessor is operated at full speed the 48MHz frequency, in case current button task is finished dealing with and do not detected new actuation of keys, processor will be operated under the 1.5MHz frequency.This frequency conversion working method has effectively reduced the average power consumption of equipment, has prolonged battery service time.

The data bus interface of considering NorFlash chip SST39VF1601 and SDRAM chip K4S641632K is 16, so the arm processor data-interface is configured to 16 bit patterns.Arm processor will be divided into 8 by every 32M byte between addressed area.The NorFlash chip selection signal is connected on ARM the 0th district's enable pin; The SDRAM chip selection signal links to each other with the 6th district's enable pin.Do the interior data cell of these sheets that extend out chip like this and just can be realized the direct read of data by the ARM addressing.

The data-interface of USB interface chip PDIUSBD12 is 8, and chip the 28th pin (AO) level just to be used to distinguish current 8 bit ports be data word or command word.Arm processor 2 district's data bit widths are configured to 8, and 2 district's enable pin select pin to link to each other with the USB chip slapper, and ARM address wire ADDR1 links to each other with the AO pin of USB.Being to the USB chip word that reads and writes data to the read-write operation of ARM addressing space 0x05000000 address like this, is read-write to USB chip command word to the read-write operation of address 0x05000002.

The data-interface of NANDFlash chip K9F1208UOB is 8, and chip the 17th pin (ALE) latchs pin for address word; The 16th pin (CLE) latchs pin for command word.Arm processor 1 district's data bit width is configured to 8, and ARM address wire ADDR1 links to each other with ALE; ADDR2 links to each other with CLE.Because chip selection signal must be effective all the time in the read-write cycle of NANDFlash, therefore universal I pin the 116th pin with ARM links to each other with the chip selection signal of NANDFlash.The enable signal in 1 district respectively with the read signal OE of ARM and write signal WE by two or be connected to reading pin 8 and writing on the pin 18 of NANDFlash chip.Read-write is to NANDFlash read write command word to ARM addressing space 0x03000004; Read-write is the write address word to 0x03000002; Read-write is the write data word to 0x03000000.

Shown in Figure 2, use the utility model to realize meter-reading function, the person of checking meter only need be carried a hand-held set, will should plagiarize the family download of information this month in hand-held set in advance before checking meter; The person of checking meter can be recorded in power consumption in the meter reader by infrared mode and manual entry mode to the scene; In the end cycle of checking meter, the person of checking meter imports to this meter reading data data in the meter reader in the marketing database automatically by USB port and power marketing system interface program.Convenient, fast, the safety of whole process.

Shown in Figure 3, use the utility model to realize the charge function.The fee-collector will this month before the charge operational period begins receivable data download to and copy and accept in hand-held set, the fee-collector takes to and closes on the toll site window and charge.For convenience of the portability that the fee-collector charges and operates and keep hand-held set, use Wireless Keyboard and wireless printing; The fee-collector can operate all-in-one typing toll amount, printed invoice by full-size keyboard.The charge operational period finishes, and the fee-collector checks collection amount by the statistical function of copying and accepting on the all-in-one, confirms that errorless back imports to this charge data in the marketing database automatically by USB interface and power marketing system interface program.

Claims

1. a hand-held is copied and accepted all-in-one, it is characterized in that with 32 arm processors be core, integrated NandFlash storer, NorFlash program storage, SDRAM data-carrier store, LCD screen controller, USB interface chip, key scan module, infrared communication module and wireless transmit receiver module; Wherein:

The NandFlash storer is as user's meter reading data and charge data storer;

The NorFlash storer is as operating system and application storage district;

The SDRAM storer is as the service data storer;

USB interface is used for the data transmission between all-in-one and PC;

The key scan module is used to respond user's input;

2. hand-held according to claim 1 is copied and accepted all-in-one, it is characterized in that described NandFlash storer, NorFlash storer, SDRAM storer, USB interface chip and arm processor link together by 32 bit address buses and 16 bit data bus; The key scan module is exported the square wave sweep signals, is detected the button trigger pips by 4 external interrupt mouths by 6 universal I/O ports, and to sending key information to operating system; Infrared communication module is connected with the universal serial port UART1 of ARM; Connected mode between wireless module and the ARM is synchronous serial bus SPI; Wireless module is operated on the open 2.4G frequency range.