A method for judging whether data in a storage device is available
A technology for storing equipment and data, applied in general control systems, instruments, computer control, etc., can solve problems such as parameter changes, safety accidents, and tediousness, and achieve reliable results.
Active Publication Date: 2017-10-13
清能德创电气技术(北京)有限公司
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Problems solved by technology
Since the servo parameters are closely related to the controller, servo motor, transmission device and feedback unit, the adjustment of the servo parameters is a relatively complicated and cumbersome work, which is a great test for the user's debugging experience and ability
Once the servo parameters are determined, these important servo parameters need to be saved, and the servo driver controller can achieve precise control of the motor by reading the motor control parameters stored in the storage area, thereby ensuring the reliability of the servo system, so , the storage of motor control parameters in the servo system is extremely critical. Taking industrial robots as an example, the normal operation of robots requires correct servo motor control parameters, because whether the storage of motor control parameters is correct or not is directly related to the performance of industrial robots on the production line. The accuracy and precision of the operation, once the adjusted motor control parameters have problems in the storage process, it will not only affect the production efficiency and product quality of the automated production line, but even cause serious safety accidents
[0003] For the preservation of servo parameters, the common practice in the prior art is to store the adjusted servo parameters in the internal memory of the servo drive or in the encoder of the servo motor, but these methods all have the following problems: due to the complex and changeable working environment , the stored parameters may change due to various unknown factors during the storage process, and at this time the operator cannot know in time whether the parameters stored in the internal memory of the servo system or the encoder have changed, nor can they know in time What kind of changes have taken place in the data in the storage area, so that the servo parameters cannot be corrected in time, resulting in serious failures in the running servo system, resulting in serious consequences
It should be noted that sometimes the change of this storage parameter may only be a change of a few bits of data or even a certain bit of data. The change is very small, but the consequences of using the changed servo parameters to control the motor are Extremely serious, causing irreparable economic losses
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[0023] The content of the present invention is specifically described as follows in conjunction with specific embodiments:
[0024] figure 1 Shown is exactly the method for judging whether the data in the memory is available of the present invention, and this judging method comprises the following steps:
[0025] (1) After the control parameters have been debugged and determined, write them into the memory. During the writing process, firstly group the data written into the memory, calculate a value for each group of data according to the verification formula, and then Write the group data into the storage area corresponding to the group data, and then write a fixed data, wherein the control parameters can be servo system motor control parameters, or parameter data in other control systems, and the memory can be servo system memory , can also be other types of memory;
[0026] (2) Read the stored control parameters, corresponding check values, fixed data and other data infor...
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The invention aims at providing a method for determining availability of data in a storage device. The method is that the verification value comparing link and the fixed data comparing link are added during reading the data in the storage device. The method comprises the steps of determining whether the verification data generated after reading parameter data are consistent with the verification value in the storage device; if so, determining by comparing the fixing data; therefore, real-time double guarantee is provided for the stored parameter data; the availability of the parameter data in the storage device can be reliably determined; the problem of data storage accuracy and maintaining reliability can be solved; a system sensitive to the parameter data can reliably run.
Description
technical field [0001] The invention relates to the field of data storage, in particular to a method for judging whether data in a storage device is available. Background technique [0002] With the continuous rise of labor costs, and at the same time my country's manufacturing industry is facing industrial upgrading and transformation, the scope of industrial automation applications is becoming wider and wider, especially advanced manufacturing equipment such as industrial robots and high-end CNC machine tools. The application of the servo system in it is more extensive. In order to improve the performance of the servo system, generally, the servo drive provides several servo parameters for users to adjust. Since the servo parameters are closely related to the controller, servo motor, transmission device and feedback unit, the adjustment of the servo parameters is a relatively complicated and cumbersome work, which is a great test for the user's debugging experience and abi...
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IPC IPC(8): G05B19/408
CPCG05B19/408
Inventor 杨刚刘波汤小平
Owner 清能德创电气技术(北京)有限公司