CN105181103A

CN105181103A - Automatic addressing method for digital weighing sensor

Info

Publication number: CN105181103A
Application number: CN201510518336.1A
Authority: CN
Inventors: 唐廷烨; 陈寒波
Original assignee: CHONGQING DATA TECHNOLOGY Co Ltd
Current assignee: CHONGQING DATA TECHNOLOGY Co Ltd
Priority date: 2015-08-21
Filing date: 2015-08-21
Publication date: 2015-12-23
Anticipated expiration: 2035-08-21
Also published as: CN105181103B

Abstract

The invention discloses an automatic addressing method for a digital weighing sensor, and the method specifically comprises the following steps: 1, enabling an instrument to transmit a search start instruction; 2, enabling the instrument to transmit a matching instruction; 3, comparing the sensor with the matching instruction, and switching to step 4 if the sensor is consistent with the matching instruction; 4, enabling the sensor to transmit a matching success instruction; 5, enabling the instrument to verify the matching success instruction: switching to step 6 if the verification is successful, or else switching to step 9; 6, enabling the instrument to transmit a next response forbidding instruction to the sensor transmitting the matching success instruction; 7, enabling the sensor to transmit a receiving determining instruction after the sensor receives the next response forbidding instruction; 8, enabling the instrument to judge whether the matching of units digits (0-9) of the matching instruction is completed or not: switching to step 2 if the matching of units digits (0-9) of the matching instruction is not completed, or else, switching to step 10; 9, enabling the instruction to carry higher digits on the basis of the matching instruction, and switching to step 2; 10, enabling the instrument to carry out the addressing of each sensor responding to the matching instruction. The method is accurate and quick in coding, and is lower in error rate.

Description

Digital weighing sensor automatic addressing method

Technical field

The present invention relates to a kind of addressing method of gauge sensor, be specifically related to a kind of digital weighing sensor automatic addressing method.

Background technology

Existing digital weighing sensor is generally all articulated in a RS485 bus, and each LOAD CELLS needs a unique address code as the identity tag of oneself.But time sensor dispatches from the factory be all a unified address, addressing is gone at needs scene, because RS485 is broadcast mode, therefore general sensor intelligent adopts in each bus can only connect a sensor, and then the way of addressing, such inefficiency, simultaneously the SDID code data length that carries of sensor is longer, to such an extent as to real-time is not high in high-speed traffic process, data are oversize simultaneously, and probability of makeing mistakes in transmitting procedure is also larger.

Summary of the invention

The present invention is directed to the deficiencies in the prior art, propose a kind of addressing efficiency high, the digital weighing sensor automatic addressing method that error rate is little, concrete technical scheme is as follows:

A kind of digital weighing sensor automatic addressing method, concrete steps are,

Step one: instrument sends and starts search instruction;

Step 2: instrument sends matching instruction;

Step 3: sensor and described matching instruction comparison, unanimously, then enter step 4;

Step 4: sensor sends the match is successful instruction;

Step 5: the match is successful that instruction verifies to described for instrument, and success, then enter step 6, mistake, then enter step 9;

Step 6: instrument sends to the sensor of the instruction that sends that the match is successful forbids that next time responds instruction;

Step 7: after forbidding responding instruction next time described in sensor accepts, send and determine to receive instruction;

Step 8: instrument judges whether a described matching instruction position 0-9 mates complete, otherwise, enter step 2, be then, enter step 10;

Step 9: instrument, on the basis of described matching instruction, is carried more high-order, entered step 2;

Step 10: instrument carries out volume address to each sensor of responses match instruction successively.

Beneficial effect of the present invention is: in addressing process, and instrument is searched for automatically from individual position, when individual position has identical, is incremented to ten and continues search, the like, search precision is high, and speed is fast; After having searched for, instrument carries out re-mapping operation according to the situation of institute's response sensor, and address can increase progressively successively as required from 1, coding is simple, effective solution sensor carries long, the complicated problem of code length, and communication speed is faster, controls more accurate; Addressing speed is faster, makes the work efficiency of its whole instrument higher.

Accompanying drawing explanation

Fig. 1 is process flow diagram of the present invention.

Embodiment

Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.

As shown in Figure 1: a kind of digital weighing sensor automatic addressing method, concrete steps are,

Step one: instrument sends and starts search instruction, all devices in notice bus carries out corresponding preparation, and sensor does not need to respond in the process;

Step 2: instrument sends matching instruction, is specially and mates with the SDID address in sensor from units 0 address;

Step 3: each sensor, by a self-contained SDID position and above-mentioned matching instruction comparison, unanimously, then enters step 4, inconsistent, does not give a response;

Step 4: sensor sends the match is successful instruction, and the SDID of self is sent to instrument, and instrument carries out respective record;

Step 5: the match is successful that CRC check is carried out in instruction to described for instrument, and success, shows to only have a sensor matching success, then enter step 6, mistake, show there is a branched sensor position identical with matching instruction, then enter step 9;

Step 7: after forbidding responding instruction next time described in sensor accepts, send and determine to receive instruction, until start search instruction upper once receiving, any matching instruction can not be responded;

Step 8: instrument judges whether a described matching instruction position 0-9 mates complete, no, then enter step 2 at matching instruction and continue search, be then, enter step 10 after individual position increases progressively one;

Step 9: instrument, on the basis of described matching instruction, is carried more high-order, as identical in individual position, is incremented to ten, the like increase progressively after, enter step 2 continue search, until individual bit scan to numeral be 9;

Step 10: instrument carries out volume address to each sensor of responses match instruction successively from 1, whole addressing activity completes.

Claims

1. a digital weighing sensor automatic addressing method, is characterized in that: concrete steps are,

Step one: instrument sends and starts search instruction;

Step 2: instrument sends matching instruction;

Step 4: sensor sends the match is successful instruction;

Step 8: instrument judges whether a described matching instruction position 0-9 mates complete, no, then enter step 2, be, then enter step 10;