DSP (digital signal processor) remote wireless upgrading method based on GPRS (general packet radio service)

A technology of remote wireless and upgrade instructions, applied in digital transmission systems, electrical components, transmission systems, etc., can solve the problems of difficult maintenance, time-consuming and labor-intensive optical fiber laying, waste of manpower and material resources, etc. handy effect

Inactive Publication Date: 2013-04-03
HARBIN INST OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims to solve the problems that the current manual upgrade method greatly wastes manpower and material resources, as well as the time-consuming and labor-intensive laying of optical fibers and difficult maintenance problems caused by the wired upgrade method, thereby providing a GPRS-based DSP remote wireless upgrade method

Method used

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  • DSP (digital signal processor) remote wireless upgrading method based on GPRS (general packet radio service)
  • DSP (digital signal processor) remote wireless upgrading method based on GPRS (general packet radio service)
  • DSP (digital signal processor) remote wireless upgrading method based on GPRS (general packet radio service)

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specific Embodiment approach 1

[0033] Specific implementation mode 1. Combination Figure 4 and Figure 5 Illustrate this specific embodiment, the DSP remote wireless upgrading method based on GPRS, it is realized by the following steps:

[0034] Step 1, both the local server and the DSP are connected to the GPRS wireless network;

[0035] Step 2, the local server sends an upgrade instruction to the DSP through the GPRS wireless network in the step 1;

[0036] Step 3, the DSP judges whether it has received the upgrade instruction sent by the local server, if the judgment result is yes, then execute step 31; if the judgment result is no, then execute step 32;

[0037] Step 31, DSP sends a response signal OK to the local server, and enters the upgrade mode at the same time; and executes step 4;

[0038] Step 3 and 2, if the upgrade command is not received in the current time period, return to step 3 to judge the receiving status of the upgrade command in the next time period;

[0039] Step 4, the local se...

specific Embodiment approach 2

[0068] Embodiment 2. This embodiment is a further limitation of the GPRS-based DSP remote wireless upgrade method described in Embodiment 1. The DSP is the main control chip of the tower crane. The model of the DSP is DSP28335.

[0069] This embodiment is a DSP remote wireless upgrade method of a tower crane.

[0070] The original alarm mode of the tower crane is that the alarm light flashes and the alarm bell rings for a long time. Due to specific needs, it is necessary to change the alarm mode to the alarm light always on, and the alarm bell sounds intermittently. At this time, the replacement of this mode can be realized through the remote upgrade technology. First, the operator imports the upgrade program into the local server, then runs the upgrade software on the server, loads the upgrade program, and starts the upgrade. After the upgrade is completed, the alarm mode of the tower crane monitor has been changed to the alarm light always on and the alarm bell ringing int...

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Abstract

The invention provides a DSP (digital signal processor) remote wireless upgrading method based on GPRS (general packet radio service), relates to a DSP remote wireless upgrading method and aims to solve the problem that optical fiber laying is time-consuming labor-consuming and difficult to maintain by a wired upgrading method. The method includes: a local server sends an upgrading instruction to a remote terminal device by a GPRS network, and the remote terminal device enters an upgrading mode after receiving the instruction and returns OK for response; the local server sequentially sends upgrading data frames, the remote terminal device checks the data frames and determines to be correct, and the data frames are stored into an external RAM (random access memory); and after all the data frames are sent, the remote terminal device erases a flash programming area inside a DSP and writes in program codes in the external RAM and reboots a chip to complete whole upgrading. The method is suitable for DSP remote wireless upgrading.

Description

technical field [0001] The invention relates to a DSP remote wireless upgrading method. Background technique [0002] With the continuous change of modern industry's control requirements, the embedded system using DSP often needs to be updated and upgraded. Today, the requirements for automation are getting higher and higher, and the existing DSP upgrade technology generally has the following problems: [0003] 1. The traditional manual upgrade method requires staff to arrive at the industrial site and replace the DSP program with a dedicated programmer, so as to realize the DSP program upgrade. The disadvantage of this upgrading technique is that it wastes a lot of manpower, material resources and time, and is inefficient. [0004] 2. Although the more advanced wired DSP program upgrade method using the Internet is fast and convenient, it is not convenient to lay WAN optical fiber in some environments, and the cost of laying WAN is high, which brings a series of problems s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L12/24
Inventor 刘晓胜郑检朱宏林王艳敏
Owner HARBIN INST OF TECH
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