CN102005115A - Infrared meter reading method - Google Patents

Abstract

The invention discloses an infrared meter reading method, which comprises the following steps of: 1, initializing an infrared communication interface of a handheld infrared metering instrument; 2, receiving an information frame and sending the information frame to a meter reading terminal through the infrared communication interface; 3, storing each byte of the received information frame in a preset cache area, and checking the information frame by using the meter reading terminal simultaneously; 4, if the byte is wrong, stopping receiving the byte, switching to error processing, sending error information, and if the byte is correct, extracting an address code, a control code and a data domain; 5, decoding the correct byte, and entering a corresponding processing sub-program according to the control code; 6, reading various data, storing the data in the handheld metering instrument, and communicating with a communication terminal of a management center through a serial port or a USB interface; and 7, exiting a communication program. Through the infrared meter reading method, the electric quantity, time, date and the like can be easily and quickly read, error reading and miss reading can be prevented, and the efficiency is improved.

Description

A kind of infrared copy meter method

Technical field

The present invention relates to a kind of meter register method, particularly relate to a kind of infrared copy meter method.

Background technology

Infrared copy meter is a kind of technology of modern centralized meter-reading system widespread usage, and it is infrared technique to be applied to one of novel meter reading method that daily ammeter makes an inventory.Infrared ray is a kind of people's the light that is invisible to the naked eye, but available digital camera is observed.Its wavelength is between 0.75um to 25um.Infrared function has become a kind of standard configuration in most of electronic electricity meter; Even if do not possess the ammeter of infrared function, its transformation operation is also very simple, just can realize as long as install the more cheap relatively infrared module of cost additional.

With the great number utilization rate has been arranged very, the low and easy realization of equipment cost has alleviated many problems troubles of administrative authority to present infrared ammeter in cities and towns, can solve those check meter less than user power utilization, can effectively prevent to estimate and copy phenomenon.Because infrared, infrared copy meter not only has the function that general meter reader is checked meter, and has more general meter reading method incomparable advantage simultaneously.

Can make an inventory (distance of effectively checking meter is nearer than radio meter register mode) easily at a distance; Because the infrared collection special characteristics of copying, solve the check meter difficulty of inconvenience of also remote districts, given work very big facility is provided.

Summary of the invention

The objective of the invention is to overcome the deficiencies in the prior art, a kind of infrared copy meter method is provided, utilize hand-held infrared copy meter instrument to check meter, reduced cost, improved efficient, and can effectively pre-mistake proofing copy, leak the phenomenon of copying, and the precision height of checking meter.

In order to achieve the above object, the technical solution used in the present invention is, a kind of infrared copy meter method, and step is as follows:

Step 1, the infrared communication interface of hand-held infrared copy meter instrument is carried out initialization;

Step 2, infrared communication interface receive information frame and information frame are sent to meter reading terminal;

Step 3, meter reading terminal are stored in each byte of information frame that receives in the predefined buffer area, and simultaneously information frame are carried out verification;

Step 4, byte are wrong, then stop to receive changing error handling processing over to, send error message, and byte is correct, then extracts address code, control code and data field;

Step 5, correct byte is decoded, enter corresponding processing subroutine according to control code;

Step 6, be stored in the hand-held meter reading instrument after Various types of data read, and communicate by the communication terminal of serial ports or USB interface and administrative center;

Step 7, withdraw from signal procedure.

Processing subroutine in the above-mentioned steps 5 comprises read data, write data, modification speed and modification time date program.

Compared with prior art, the invention has the beneficial effects as follows: by the infrared copy meter method, can simple and fast read electric weight, time, date etc. and can prevent that mistake from copying, leaking and copy phenomenon, improved efficient.

Description of drawings:

Fig. 1 is a software flow pattern of the present invention.

Embodiment:

Purport of the present invention is to overcome the deficiencies in the prior art, a kind of infrared copy meter method is provided, utilize hand-held infrared copy meter instrument, in communication process, hand-held meter reading instrument is as main frame, and its transmission and reception all are initiatively, and meter reading terminal adopts the serial interrupt mode, receive the frame that hand-held meter reading instrument sends over, and carry out communicating after a series of processing verification.Can conveniently make an inventory at a distance, solve the difficult problem that it is inconvenient to check meter in remote districts.And can prevent that mistake from copying, leaking and copy phenomenon, improve efficient.

Be elaborated with reference to accompanying drawing below in conjunction with embodiment, so that technical characterictic of the present invention and advantage are carried out more deep annotation.

Software flow pattern of the present invention as shown in Figure 1, a kind of infrared copy meter method, its step is as follows:

Step 1, the infrared communication interface of hand-held infrared copy meter instrument is carried out initialization;

Step 2, infrared communication interface receive information frame and information frame are sent to meter reading terminal;

Step 3, meter reading terminal are stored in each byte of information frame that receives in the predefined buffer area, and simultaneously information frame are carried out verification;

Step 4, byte are wrong, then stop to receive changing error handling processing over to, send error message, and byte is correct, then extracts address code, control code and data field;

Step 5, correct byte is decoded, enter corresponding processing subroutine according to control code;

Step 6, be stored in the hand-held meter reading instrument after Various types of data read, and communicate by the communication terminal of serial ports or USB interface and administrative center;

Step 7, withdraw from signal procedure.

Processing subroutine in the above-mentioned steps 5 comprises read data, write data, modification speed and modification time date program.

More than operate and finish, concrete frame format such as following table by the GB frame:

Explanation	Code
		Start-of-frame	68H
Address field	A0～A5
		Instruction character	C
Data length field	L
		Data field	DATA
Check code	CS
		End mark	16H

By above table as can be known, start-of-frame is 68H, and address field is A0～A5, and instruction character is C, and data length field is L, and data field is DATA, and check code is CS, and end mark is 16H.

The infrared copy meter instrument carries out the scene when checking meter, by the infrared communication interface meter reading terminal itself is carried out on-site parameters setting and data read by hand-held meter reading instrument, or realize the parameter setting of each table and the copy reading of electric weight are comprised and freeze electric weight, current electric quantity, historical data, time, isoparametric setting of date and copy reading by meter reading terminal.Be stored in after Various types of data reads in the hand-held meter reading instrument, give management centre computer with data upload, the scene of the finishing process of checking meter by serial ports or USB interface.

Claims (2)

1. infrared copy meter method, step is as follows:

Step 1, the infrared communication interface of hand-held infrared copy meter instrument is carried out initialization;

Step 2, infrared communication interface receive information frame and information frame are sent to meter reading terminal;

Step 3, meter reading terminal are stored in each byte of information frame that receives in the predefined buffer area, and simultaneously information frame are carried out verification;

Step 4, byte are wrong, then stop to receive changing error handling processing over to, send error message, and byte is correct, then extracts address code, control code and data field;

Step 5, correct byte is decoded, enter corresponding processing subroutine according to control code;

Step 6, be stored in the hand-held meter reading instrument after Various types of data read, and communicate by the communication terminal of serial ports or USB interface and administrative center;

Step 7, withdraw from signal procedure.

2. infrared copy meter method according to claim 1 is characterized in that: the processing subroutine in the described step 5 comprises read data, write data, modification speed and modification time date program.

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