CN202534153U

CN202534153U - Electric meter box provided with RS (radio station) 485 bus detection function

Info

Publication number: CN202534153U
Application number: CN2012201582275U
Authority: CN
Inventors: 鲍成番
Original assignee: SHANGHAI SAINTSUNG INDUSTRIAL Co Ltd
Current assignee: Shengxiang Group Co., Ltd.
Priority date: 2012-04-14
Filing date: 2012-04-14
Publication date: 2012-11-14
Anticipated expiration: 2022-04-14

Abstract

The utility model discloses an electric meter box provided with an RS (radio station) 485 bus detection function. The electric meter box comprises a box body, wherein the box body is internally provided with a 485 bus; and the electric meter box also comprises an RS 485 bus detection chip, and the RS 485 bus detection chip is arranged in the box body and is connected with the 485 bus in the electric meter box. The electric meter box can accurately position the generated failure of a line.

Description

Ammeter box with RS485 bus measuring ability

Technical field

The utility model relates to a kind of electric energy meter, is specifically related to a kind of ammeter box that has the wireline inspection function.

Background technology

Electric energy meter is connected on the collector through 485 lines, and collector is connected on the concentrator through 485 lines, and concentrator sends to the electric power data acquisition station through GPRS with data.Collector is through 485 money work.More existing ammeter boxes leave 485 circuits, but unobstructed to circuit not especially shown outside unobstructed detection of case, just has only circuit, do not do wireline inspection, can not accurately locate line fault.

Owing to have only circuit, do not do wireline inspection, cause existing ammeter box in low-voltage collecting meter reading changes the outfit installation process, the workman need go with extra instrument to check whether circuit is unimpeded; Even detected well, circuit is unimpeded, and ammeter has connected; Collector has also connected, if found line interruption in the use afterwards, the situation that data can not normally be gathered; At this moment also very difficultly confirm it is line interruption where and the fault that causes on earth; Can not find circuit where and broken, just often want the very big manpower of telephone expenses, physics to go to check that where disconnected circuit is, could solve the fault of centralized automatic meter-reading device like this.

Thus, how the Acquisition Circuit to electric energy meter detects, and makes this area need the problem of solution badly so that accurately locate line fault.

The utility model content

The utility model is not done wireline inspection to having only circuit in the existing electric energy meter, can not accurately locate the problem of line fault, and a kind of ammeter box that has the wireline inspection function is provided.

In order to achieve the above object, the utility model adopts following technical scheme:

Ammeter box with RS485 bus measuring ability comprises a casing, is provided with 485 buses in it, and said ammeter box also comprises a RS485 bus detection chip, and said RS485 bus detection chip is placed in the casing and is connected into 485 inner buses of ammeter box.

In the preferred embodiment of the utility model, said RS485 bus detection chip is 8051 chips.

The following advantage that the utlity model has according to such scheme formation:

1, can accurately locate the fault that circuit occurs;

2, can reduce human and material resources, save the energy;

3, the fault that makes things convenient for maintainer's repair apparatus to occur saves time.

Description of drawings

Further specify the utility model below in conjunction with accompanying drawing and embodiment.

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

Embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.

Referring to Fig. 1, the utility model is installed an independently RS485 bus detection chip 1 in the casing of ammeter box, and this independently detection chip be independent outside ammeter, but be connected into 485 buses 2 of the inner individual ammeter of ammeter box.

Through the detection chip that is connected into as main equipment; Can send some orders of checking meter on the one hand to ammeter; Whether unobstructedly can detect these a series of slave unit circuit of ammeter; Can also send some orders that collector, concentrator are uploaded and detect, whether unobstructed through order feedback acknowledgment circuit.

Under all unimpeded situation of uplink and downlink circuit, the unimpeded situation of coming indication circuit through forms such as signal lamp, pilot lamp, LED lamps.For example when the uplink and downlink circuit indicator has red display, just show that circuit has broken down; When the uplink and downlink circuit indicator all shows green light, just show that circuit is unimpeded.

When the maintainer finds or during downstream circuitry pilot lamp exhibit red, just knows that fault has taken place which bar circuit.Copy fault when collection occurring, as long as the maintenance personal checks the pilot lamp situation, problem that just can the accurate in locating circuit.For example, up pilot lamp exhibit red, fault has appearred in the expression upstream circuitry; Descending pilot lamp exhibit red, fault has appearred in the expression downstream circuitry; The uplink and downlink pilot lamp all shows green, and indication circuit is unimpeded.

Based on such scheme, the practical implementation of the utility model is following:

Referring to Fig. 1; Adopt 8051 chips as RS485 bus detection chip 1, it is installed in the ammeter box, electric energy meter 3 is connected on the collector through 485 buses 2; Collector is connected on the concentrator through 485 buses 2, and concentrator sends to the electric power data acquisition station through GPRS with data.

When 485 buses, 2 operate as normal, the green indicating lamp at 8051 chips, 1 place lights; When 485 buses, 2 cisco unity malfunctions, then 8051 chips, 1 place's red light lights.

Concrete up connection request is carried out according to the up connection protocol of DW3761-2009, and ammeter connects to be carried out according to DLT645-2007 ammeter connection protocol.

More than show and described the advantage of ultimate principle, principal character and the utility model of the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the instructions that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.

Claims

1. the ammeter box that has RS485 bus measuring ability; Comprise a casing, be provided with 485 buses in it, it is characterized in that; Said ammeter box also comprises a RS485 bus detection chip, and said RS485 bus detection chip is placed in the casing and is connected into 485 inner buses of ammeter box.

2. the ammeter box with RS485 bus measuring ability according to claim 1 is characterized in that, said RS485 bus detection chip is 8051 chips.