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Gravitational acceleration correcting method and system

A gravitational acceleration, re-encryption technology, applied in transmission systems, digital transmission systems, weighing equipment testing/calibration, etc., can solve problems such as the inability to guarantee the accuracy of measuring objects

Inactive Publication Date: 2016-01-06
SHANGHAI SIGANG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is the defect that the acceleration of gravity of the electronic weighing device can only be preset in advance, and the accuracy of the quality of the measured object cannot be guaranteed in the prior art. Gravity acceleration correction method and system for setting gravity acceleration and ensuring weighing accuracy

Method used

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  • Gravitational acceleration correcting method and system

Examples

Experimental program
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Effect test

Embodiment 1

[0074] A gravitational acceleration correction method is used to correct the gravitational acceleration of an electronic weighing device (such as an electronic scale), mainly including three processes: registration of the electronic weighing device, initial calibration of the gravitational acceleration and correction of the remote gravitational acceleration.

[0075] The registration of the electronic weighing device is mainly used for registering the information of the electronic weighing device on the server, and is especially suitable for a situation where one server can correct the gravitational acceleration of multiple electronic weighing devices. Among them, each electronic weighing device identifies its unique identity through a serial number, that is, different electronic weighing devices have different serial numbers. Registration of electronic weighing devices, see figure 1 , including the following steps:

[0076] Step 101 , the electronic weighing device judges wh...

Embodiment 2

[0107] This embodiment is basically the same as Embodiment 1, the difference is that, see Figure 7 , Step 304 also sends the city name (Shanghai) to the electronic weighing device.

[0108] Step 306 is replaced by: the electronic weighing device checks whether the decrypted control code is the same as the control code stored in step 203, if yes, step 308, if not, end the process.

[0109] Step 308, the display screen of the electronic weighing device displays the city name (Shanghai) and the acceleration of gravity (9.794m / s) of the electronic weighing device obtained. 2 ).

[0110] The user judges whether the positioning is correct through the display. If the electronic weighing device is in the displayed city (that is, in Shanghai), then input a confirmation command to confirm the correction, such as pressing the "confirm" key on the keyboard of the electronic weighing device. The electronic weighing device is not in the displayed city (that is, not in Shanghai), but if t...

Embodiment 3

[0115] This embodiment is basically the same as Embodiment 2, the difference is that, see Figure 9 , step 309 is replaced by: the electronic weighing device judges whether the confirmation instruction is received, if yes, execute step 310, if not, end the process.

[0116] Step 310 , the electronic weighing device sends a third random code to the server, and the third random code is used as a second request for obtaining a revision permission.

[0117] Step 311, the server receives the third random code and records the 8-digit serial number of the electronic weighing device as having obtained the modification permission.

[0118] Step 312, the server uses the third random code as a key to re-encrypt the control code, and then sends the re-encrypted control code to the electronic weighing device.

[0119] Step 313 , the electronic weighing device uses the third random code as a key to decrypt the obtained re-encrypted control code.

[0120] Step 314. Check whether the decryp...

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Abstract

The present invention discloses a gravitational acceleration correcting method and system. The method comprises the steps that when gravitational acceleration is demarcated for the first time, a first request is sent to a server, the server sends an encrypted control code back, and an electronic weighing device decrypts and stores the control code; after obtaining a first external command, the electronic weighing device transmits the first external command to the server, the server positions and sends the gravitational acceleration and an encrypted control code back, and the electronic weighing device decrypts the control code and compares the decrypted control code with the stored control code to see if they are the same; if yes, setting the gravitational acceleration as that of the electronic weighing device, and if not, finishing. With adoption of the method, the gravitational acceleration can be automatically set according to the position where the electronic weighing device is, thereby ensuring weighing accuracy, preventing other servers from tampering the gravitational acceleration of the electronic weighing device, and effectively ensuring correcting security and data transmission concealment.

Description

technical field [0001] The invention relates to a gravitational acceleration correction method and system, in particular to a gravitational acceleration correction method and system for an electronic weighing device. Background technique [0002] An electronic weighing device is a device used to measure the mass of an object. When measuring, put the object on the weighing pan of the electronic weighing device, the elastic body under the weighing pan is deformed due to the gravity of the object, and the gravity is measured by the deformation amount, and then the mass of the object is calculated by the formula. [0003] As we all know, the magnitude of the acceleration of gravity is directly proportional to the gravity of the object, and inversely proportional to the mass of the object, and the latitude and altitude are different, and the corresponding value of the acceleration of gravity is also different. Generally, according to the sales area of ​​the electronic weighing d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G23/01H04L9/20
Inventor 景凌霄周海庆
Owner SHANGHAI SIGANG ELECTRONICS
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