CN108170132B

CN108170132B - Modular EPS bus processing method based on serial bus

Info

Publication number: CN108170132B
Application number: CN201810018688.4A
Authority: CN
Inventors: 李钦林
Original assignee: Chengdu College of University of Electronic Science and Technology of China
Current assignee: Chengdu College of University of Electronic Science and Technology of China
Priority date: 2018-01-09
Filing date: 2018-01-09
Publication date: 2022-04-01
Anticipated expiration: 2038-01-09
Also published as: CN108170132A

Abstract

The invention aims to provide a modular EPS bus processing method based on a serial bus, which comprises an upper computer, the upper computer is connected with an EPS device through an RS485 bus 2, the EPS device is formed by mutually independent modular combination, the EPS device comprises a system control panel, a display module, an inversion module and a charging module, the external input/output end of the system control panel is connected with the input/output end of the upper computer through the RS485 bus 2, the internal input/output end of the system control panel is respectively connected with the input/output end of the display module, the inversion module and the charging module through the RS485 bus 1 to form the system control panel, the system control panel can effectively facilitate the searching and maintenance of the device during fault, only needs corresponding combination among modules for different power levels, does not need redesign, improves the work efficiency of a team, effectively realizes the quick propelling product development, and effectively reduces the development cost.

Description

Modular EPS bus processing method based on serial bus

Technical Field

The invention relates to the field of data processing, mainly relates to improvement and design of EPS data collection and processing, and particularly relates to a modular EPS bus processing method based on a serial bus.

Background

In data processing, particularly in data processing of an EPS device, various existing EPS devices are generally perfect in power level, function and application fields, but the system structure is integrally designed, a charging part, an inversion part and a display part are all connected to a master control board through a plurality of connecting wires, information acquisition control is completed through one control board, but the device cannot be quickly searched and maintained when in fault; the EPS of each power level must be completely redesigned, and is not beneficial to team work division cooperation, rapid promotion of product development and reduction of development cost when updating and updating are carried out.

Therefore, the modular EPS bus processing method based on the serial bus is provided, each module in the EPS device is independently connected, the device can be effectively and conveniently searched and maintained when in fault, only corresponding combination among the modules is needed for different power levels, redesign is not needed, the work efficiency of a team is improved, rapid product development is effectively realized, and the development cost is effectively reduced.

Disclosure of Invention

The invention aims to provide a serial bus-based modular EPS bus processing method, which can effectively facilitate the searching and maintenance of a device in the event of failure by independently connecting each module in an EPS device, only needs corresponding combination among the modules for different power levels, does not need redesign, improves the working efficiency of a team, effectively realizes the rapid promotion of product development, and effectively reduces the development cost.

In order to solve the technical problems in the background technology, the invention adopts the following technical scheme:

the utility model provides a modularization EPS bus processing method based on serial bus, includes the host computer, the host computer pass through RS485 bus 2 and be connected with the EPS device, the EPS device constitute by mutually independent modular combination, the EPS device include system control board, display module, contravariant module and the module of charging, the external input/output end of system control board pass through RS485 bus 2 and be connected with the input/output end of host computer, the inside input/output end of system control board passes through RS485 bus 1 and is connected with the input/output end of display module, contravariant module and the module of charging respectively and constitute.

Preferably, the RS485 bus 1 realizes information exchange between the system control panel and the display module, and between the system control panel and the inversion module and between the system control panel and the charging module.

Preferably, the upper computer controls the EPS device through the RS485 bus 2 so as to timely collect information in the EPS device.

Preferably, the RS485 bus 1 and the RS485 bus 1 are formed by a complete data packet formed by every 4 frames, and each frame includes 11 binary bits.

Preferably, the EPS device uses a token type bus in a system in which communication flows.

A modularized EPS bus processing method based on a serial bus comprises the following steps:

when the device is started to use, a data packet is read firstly, whether the data type value is 0 or not is judged, if not, the data is processed according to general data, if so, whether the previous position of the token position where the data packet is located is 1 or not is judged, if not, the module does not act, if so, the data packet corresponds to the token position 1, if the system module needs to set all the rest positions to be 0, then the information is sent after the token holding flag bit 1 is set, if not, the information is continuously sent, if so, the token information is sent to a bus, and finally, the token holding flag bit 0 is reset, so that a period is completed.

Preferably, the information of the token-type bus is transmitted from the bus in a broadcast manner.

Preferably, the token bus information is configured to: token bus height 8 position is all set zero, in token bus low eight bits, token bus 1 st bit is connected with system control module, token bus 2 nd bit is connected with the module of charging, token bus 3 rd bit is connected with the contravariant module, token bus 4 th is for being connected with the display module, token bus's 5 th bit, 6 th bit, 7 th bit and 8 th bit are all empty to be reserved, through the empty reservation to high four-digit, in order to be used for the expansion of EPS function module, effectual improvement EPS function module's regulation adaptability.

The invention has the beneficial effects that:

1) the device can effectively facilitate finding and maintaining when the device breaks down, only needs corresponding combination between modules aiming at different power levels, does not need redesign, improves the working efficiency of a team, effectively realizes quick propulsion product development and effectively reduces the development cost.

2) The EPS device is a device for providing backup power for various equipment during power failure, and mainly comprises a system control part, a display part, an inversion part and a charging part, wherein the system control part, the display part, the inversion part and the charging part are connected by adopting a plurality of single wires or flat cables and are used for transmitting analog quantity signals and digital quantity signals.

3) Meanwhile, the token bus based on the serial bus, which is developed in the application, can effectively reduce the cost, and is stable in operation and high in reliability.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a block diagram of a specific embodiment of a serial bus-based modular EPS bus processing method according to the present invention;

fig. 2 is a system flowchart of a specific embodiment of a serial bus-based modular EPS bus processing method according to the present invention.

Detailed Description

The present invention will be described in further detail below in order to enable those skilled in the art to better understand the technical solution of the present invention.

Referring to fig. 1 and 2, a modular EPS bus processing method based on a serial bus includes an upper computer connected to an EPS device through an RS485 bus 2, the EPS device being formed by modular combinations that are independent of each other, the EPS device including a system control board, a display module, an inverter module, and a charging module, an external input/output end of the system control board being connected to an input/output end of the upper computer through the RS485 bus 2, and an internal input/output end of the system control board being connected to input/output ends of the display module, the inverter module, and the charging module through the RS485 bus 1.

Further, the RS485 bus 1 realizes information exchange with the system control panel, the display module, the inversion module and the charging module.

Further, the upper computer controls the EPS device through the RS485 bus 2 so as to timely collect information in the EPS device.

Further, the RS485 bus 1 and the RS485 bus 1 are formed by a complete data packet formed by every 4 frames, and each frame includes 11 binary bits.

Further, the EPS device uses a token type bus in a system in which communication flows.

The bus processing method comprises the following steps:

Further, the information of the token type bus is sent from the bus in a broadcast mode.

Further, the token bus information is configured to: token bus height 8 position is all set zero, in token bus low eight bits, token bus 1 st bit is connected with system control module, token bus 2 nd bit is connected with the module of charging, token bus 3 rd bit is connected with the contravariant module, token bus 4 th is for being connected with the display module, token bus's 5 th bit, 6 th bit, 7 th bit and 8 th bit are all empty to be reserved, through the empty reservation to high four-digit, in order to be used for the expansion of EPS function module, effectual improvement EPS function module's regulation adaptability.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the foregoing description is illustrative in nature and is not to be construed as limiting the scope of the invention as claimed.

Claims

1. A modularized EPS bus processing method based on a serial bus comprises an upper computer and is characterized in that: the EPS device comprises a system control panel, a display module, an inversion module and a charging module, wherein the external input and output ends of the system control panel are connected with the input and output ends of the upper computer through the RS485 bus 2, and the internal input and output ends of the system control panel are respectively connected with the input and output ends of the display module, the inversion module and the charging module through the RS485 bus 1; the RS485 bus 1 realizes information exchange between a system control panel and a display module, and between an inversion module and a charging module; the upper computer controls the EPS device through the RS485 bus 2 so as to collect information in the EPS device in time; the RS485 bus 1 and the RS485 bus 1 are formed by complete data packets formed by every 4 frames, and each frame comprises 11 binary bits; the EPS device uses a token type bus in a communication flowing system;

the bus processing method comprises the following steps:

2. The serial bus based modular EPS bus processing method according to claim 1, wherein the information of the token type bus is transmitted from the bus in a broadcast form.

3. The serial bus based modular EPS bus processing method according to claim 2, wherein the token bus information is configured as follows: the high 8 bits of the token bus are all set to zero, in the low eight bits of the token bus, the 1 st bit of the token bus is connected with the system control module, the 2 nd bit of the token bus is connected with the charging module, the 3 rd bit of the token bus is connected with the inversion module, the 4 th bit of the token bus is connected with the display module, and the 5 th bit, the 6 th bit, the 7 th bit and the 8 th bit of the token bus are all set to be reserved.