CN111256801B - Prevention and control system of weighing monitoring prevention and control instrument - Google Patents

Abstract

The invention relates to the field of prevention and control equipment of prevention and control instruments, and provides a weighing monitoring prevention and control instrument prevention and control system which comprises a receiving module and a control module, wherein the receiving module is used for receiving wireless signals; the sampling module is used for sampling the wireless signals to obtain frequency information; the storage module is used for prestoring frequency information of suspected signals; the matching module is used for matching the obtained frequency information with pre-stored frequency information; the processing module is used for shielding the wireless signal; the storage module is also used for storing the sampled frequency information and the wireless signal in a correlation manner and generating a signal information table; the device also comprises an identification module used for identifying the working state of the weighing equipment, and when the anti-weighing equipment is identified to be in the running state, the processing module carries out shielding operation. The invention can reduce the power consumption of the processing module.

Description

Prevention and control system of weighing monitoring prevention and control instrument

Technical Field

The invention relates to the field of prevention and control equipment of prevention and control instruments, in particular to a prevention and control system of a weighing monitoring prevention and control instrument.

Background

In order to weigh the goods entering the warehouse or the factory building, the enterprise or the factory sets a weighbridge for weighing in the warehouse or the factory building. The wagon balance is used as an automatic weighing device, and mainly utilizes a pressure plate type sensor to convert the measured weight into an electric signal proportional to the weight value, and the electric signal is transmitted to a single chip microcomputer to be processed and then is displayed by a display device, so that a manager can directly observe the weight of goods entering and exiting through the display device.

Along with the wide use of the wagon balance, some lawless persons adopt the remote control signal that wagon balance cheater sent to add and subtract control to the electric signal in order to seek improper benefit from it when weighing the goods to change the size of electric signal and then change the numerical value that shows, and then realize cheating. In response to such cheating, it is also necessary to use a prevention and control instrument to prevent the cheating when the wagon balance is used. During the use, prevention and control appearance forms the radio wave safety protection of certain area around the weighbridge to monitor wireless remote control signal in effective working range, monitor suspect signal back, shield this suspect signal, wireless remote control signal is shielded the back, just can not disturb the signal of telecommunication again, thereby realize the purpose of preventing cheating. However, with the rapid development of science and technology, electronic devices have become indispensable articles of daily use, that is, wireless signals often appear around the weighbridge, and if the prevention and control instrument cannot distinguish the wireless signals from wireless remote control signals, shielding operation is required after the prevention and control instrument detects the occurrence of the wireless signals, so that the power consumption of the prevention and control instrument is increased. Moreover, once the prevention and control instrument shields all electric signals, the manager cannot normally operate the prevention and control instrument in a wireless control mode, so that the normal control of the prevention and control instrument is influenced.

Disclosure of Invention

The invention aims to provide a prevention and control system of a weighing monitoring prevention and control instrument, which aims to solve the problem that the conventional prevention and control instrument cannot distinguish normal wireless signals from cheating wireless signals, so that the power consumption of the prevention and control instrument is large.

The basic scheme provided by the invention is as follows: the prevention and control system of the weighing monitoring prevention and control instrument comprises a receiving module, a monitoring module and a control module, wherein the receiving module is used for receiving wireless signals;

the sampling module is used for sampling the received wireless signals to obtain the frequency information of the wireless signals;

the storage module is used for prestoring frequency information of suspected signals;

the matching module is used for matching the frequency information obtained by sampling with the frequency information of the prestored suspected signal;

the processing module is used for shielding the wireless signal;

the storage module is also used for associating and storing the sampled frequency information with the wireless signal and generating a signal information table, wherein the signal information table comprises signal types and frequency information, and the signal types comprise signal types and safety types;

the identification module is used for identifying the working state of the weighing equipment when the frequency information obtained by sampling matched by the matching module is the same as the prestored frequency information, and the processing module is used for shielding when the weighing equipment is identified to be in the running state;

The system also comprises a modification module, wherein the receiving module is also used for receiving modification information, and the modification module is used for modifying the signal information table and the prestored suspected signal according to the modification information.

Description of the drawings: in this scheme, the modification to the suspicion signal of prestoring indicates to revise this suspicion signal into the safety signal, and the suspicion signal indicates the wireless signal who is suspected to carry out the remote control to the weighing result of weighing instrument, and the safety signal then indicates the wireless signal that can not cause the influence to the weighing result of weighing instrument.

The basic scheme has the working principle and the beneficial effects that: compared with the existing prevention and control instrument, the scheme 1 is also provided with the identification module, and the processing module performs shielding operation when the weighing equipment is identified to be in the running state, because when the weighing equipment does not work, no substantial influence is generated even if the weighing equipment is controlled by a wireless remote control signal at the moment, so that the number of times of the shielding operation performed by the processing module is reduced by the arrangement of the identification module, the power consumption of the processing module is also reduced, and the power consumption of the prevention and control instrument is also reduced;

2. still through the cooperation of storage module and modification module, modify the frequency information of suspect signal, generate the signal information table by storage module according to received radio signal, the managers just also can know all signal information appearing around the instrument of weighing through looking over the signal information table to modify the security type of the radio information of wherein obviously not suspect signal through sending modification information, thereby reduced the mismatch phenomenon to suspect signal, further reduced the consumption of prevention and control appearance.

The first preferred scheme is as follows: as the optimization of the basic scheme, the storage module prestores self-repair information; when the frequency information obtained by sampling matched by the matching module is the same as the pre-stored frequency information, if the identification module identifies that the working state of the weighing equipment changes repeatedly, the modification module modifies the signal information table and the pre-stored suspected signal according to the self-repair information. Has the advantages that: the operating condition of the weighing equipment changes repeatedly, and then this radio signal all exists always, just also can be regarded as the radio signal that normally exists, therefore in this scheme, through prestoring in the storage module after the information of repairing oneself, when suspect signal and this signal exist always in the matching, the modification module is revised according to the information of repairing oneself this moment is automatic, compares with the manual modification of managers, adopts the mode of automatic modification more timely and convenient in this scheme.

The preferred scheme II is as follows: the basic scheme preferably comprises an alarm module, and when the processing module performs shielding operation, the alarm module sends alarm information. Has the advantages that: in this scheme, when shielding operation, alarm module sends alarm information to remind managers to carry out careful treatment to this time business turn over goods operation, avoid appearing loss of property.

The preferable scheme is three: preferably, the storage module is further configured to store the masking operation information, where the masking operation information includes time and number of times the masking operation is performed and frequency information of the wireless signal masked by the masking operation. Has the advantages that: in the scheme, the shielding operation information is stored through the storage module, so that managers can conveniently check the relevant information of the shielding operation.

The preferable scheme is four: preferably, the third preferred embodiment further includes a statistic module, configured to count the masking operation information, and generate a masking statistic value of each frequency information according to the masked frequency information. Has the advantages that: in the scheme, the shielding statistical value is generated by counting the shielding operation information, and if the shielding statistical value is large, the number of times of receiving the wireless signal with the frequency is large, and the wireless signal with the frequency needs to be monitored repeatedly.

The preferable scheme is five: as the optimization of the fourth optimization scheme, the storage module is preset with a statistical threshold, and the matching module is further configured to match the statistical mask statistical value obtained through statistics with the statistical threshold;

the device also comprises an alarm module, and when the matched shielding statistic value is larger than the statistic threshold value, the alarm module sends frequency alarm information.

Has the advantages that: in the scheme, when the shielding statistical value is larger than the statistical threshold value, the wireless signal of the frequency is monitored for many times, and important attention is needed, and at the moment, the alarm module sends time alarm information to inform a manager to pay important attention to the wireless signal of the frequency, so that monitoring is enhanced.

The preferable scheme is six: preferably, the second preferred scheme further comprises a monitoring module for monitoring the operation state of the processing module, and the alarm module sends abnormal state information when the processing module is monitored to be in abnormal operation. Has the advantages that: considering that the normal operation of the prevention and control work is ensured, the processing module is required to be in a normal operation state, therefore, the monitoring module is further arranged in the scheme to monitor the operation state of the processing module, when the abnormal operation of the processing module is monitored, the alarm module sends abnormal state information to inform a manager, and the manager is reminded to timely overhaul the processing module so as to ensure the normal operation of the prevention and control work.

The preferable scheme is seven: preferably, the receiving module is further configured to receive maintenance information of the processing module, and the storage module stores the maintenance information, where the maintenance information includes an abnormal expression and a maintenance method. Has the advantages that: in this scheme, the maintenance information of processing module is saved through the cooperation of receiving module and storage module, and on the one hand, be convenient for have more comprehensive understanding to processing module's user state when overhauing processing module, and on the other hand, if processing module does not have professional maintainer present when needing to maintain, then the managers can maintain by oneself through looking over maintenance information.

The preferable scheme is eight: preferably, the storage module prestores an exception type, and the storage module classifies and stores the maintenance information according to the exception type. Has the advantages that: in the scheme, after the maintenance information is classified and stored, the maintenance information is convenient to search.

The preferable scheme is nine: preferably, the receiving module is further configured to receive clearing information, and the modifying module clears the stored signal information table according to the clearing information. Has the advantages that: in consideration of the limited storage space of the storage module, in order to ensure that the newly generated signal information table can be normally stored, the scheme clears the signal information table through the modification module, clears the signal information table with too long storage time, and ensures the normal storage of the new signal information table.

Drawings

Fig. 1 is a block diagram of a first embodiment of a prevention and control system of the weighing monitoring prevention and control instrument of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

example one

Substantially as shown in figure 1: the prevention and control system of the weighing monitoring prevention and control instrument comprises a receiving module, a control module and a control module, wherein the receiving module is used for receiving wireless signals, modifying information and clearing information;

The sampling module is used for sampling the received wireless signals to obtain the frequency information of the wireless signals;

the storage module is used for prestoring frequency information, self-repairing information and a statistical threshold of the suspected signal;

the matching module is used for matching the frequency information obtained by sampling with the frequency information of the prestored suspected signal;

the identification module identifies the working state of the weighing equipment when the frequency information obtained by sampling matched by the matching module is the same as the pre-stored frequency information;

the processing module is used for shielding operation when recognizing that the weighing equipment is in the running state; the storage module is further used for storing shielding operation information, and the shielding operation information comprises the time and the times of the shielding operation and the frequency information of the wireless signals shielded by the shielding operation;

the storage module is also used for associating and storing the sampled frequency information with the wireless signal and generating a signal information table, wherein the signal information table comprises signal types and frequency information, and the signal types comprise signal types and safety types;

the modification module is used for modifying the signal information table and the prestored suspected signal according to the modification information; matching the frequency information obtained by sampling in the matching module and the prestored frequency information, identifying the repeated change of the working state of the weighing equipment by the identification module, and modifying the signal information table and the prestored suspected signal by the modification module according to the self-repair information; clearing the stored signal information table according to the clearing information;

The alarm module sends alarm information when the processing module performs shielding operation;

the statistical module is used for counting the shielding operation information and generating a shielding statistical value of each frequency information according to the shielding frequency information; the matching module is also used for matching the shield statistic value obtained by statistics with the statistic threshold value, and when the shield statistic value is larger than the statistic threshold value, the alarm module sends frequency alarm information;

and the monitoring module is used for monitoring the running state of the processing module, and the alarm module sends abnormal state information when monitoring that the processing module runs abnormally.

The specific implementation process is as follows: in this embodiment, the weighing apparatus is exemplified by a wagon balance. In use, the wireless signals around the weighing equipment are scanned and received by the receiving module, and within 12 hours, the receiving module receives five signals, namely a signal A1, a signal A2, a signal A3, a signal A4 and a signal A5.

The sampling module samples the wireless signal to obtain frequency information, taking signal a as an example, the sampling module collects X1 signal samples in unit time, and if the frequency of signal a is X1HZ, X1HZ is the frequency information of signal a. After the five signals are processed by the set sampling module, the obtained frequency information is as shown in table one.

Watch 1

Where Hz is the unit of frequency information.

After the frequency information of the wireless signal is obtained, the matching module matches the obtained frequency information with the frequency information of the prestored suspected signal. And setting the frequency information of the N suspected signals prestored in the storage module as shown in the table II.

Watch two

In the matching process, if the frequency information X1Hz of the signal a1 is matched to be the same as the frequency information Y1Hz of the signal B1, that is, X1= Y1, the identification module identifies the operating state of the wagon balance at this time.

If the wagon balance is in the running state at this time, it is indicated that the signal a1 is used for interfering with the wagon balance, so that the processing module performs a shielding operation at this time, that is, the processing module sends an interference signal having the same frequency as the signal a1, thereby implementing a shielding operation on the signal a1, and the alarm module sends alarm information while performing the shielding operation, in this embodiment, a voice alarm mode is adopted, and the alarm module adopts a buzzer, so that when performing the shielding operation, the alarm module sends alarm information such as "suspect signal is monitored, and shielding operation is performed"; if the wagon balance is in a leisure state at the moment, the wagon balance is not weighed at the moment, and the processing module does not perform any operation.

After the processing module performs the masking operation, the storage module stores the information of the masking operation, such as the processing module performs the masking operation on the signal a1, the signal A3 and the signal a4 within the 12 hours after the matching and the identification, and the storage module stores the information of the masking operation as described in table three.

Watch III

After the matching is completed, the storage module further associates and stores the sampled frequency information with the wireless signal and generates a signal information table, where the signal information table includes a signal category and frequency information, and the signal category includes a signal type and a security type, as described in table four.

Watch four

The receiving module also receives modification information. If the manager finds that the signal a1 belongs to a safety signal, so that the manager sends modification information, the modification module modifies the safety type of the signal a1 from "dangerous" to "safe", and modifies a pre-stored suspected signal with the same frequency as the signal a1, and if the frequency information of the signal B1 is the same as the frequency information of the signal a1, the modified signal B1 is no longer a suspected signal.

The storage module also stores self-repairing information, when the matching module matches that the sampled frequency information is the same as the pre-stored frequency information and the identification module identifies that the working state of the weighing equipment repeatedly changes, if the matching module matches that the frequency information of the signal A2 is the same as the frequency information of the signal B2 in the suspected signal, the identification module identifies the working state of the wagon balance, identifies that the working state of the wagon balance repeatedly changes in the running state and the leisure state during the existence period of the signal A2, if the working state of the wagon balance is running-leisure-running, the signal A2 is always present, is a signal transmitted by some electronic equipment around the wagon balance, such as a signal transmitted by a mobile phone of a manager in an office near the wagon balance, and at the moment, the modification module automatically modifies the signal information table and the pre-stored suspected signal according to the self-repairing information, after modification, the safety type of the signal A2 is modified from "dangerous" to "safe", and the signal B2 is no longer suspect.

The receiving module further receives the clearing information, and after the clearing information is received, the modifying module clears the corresponding content in the stored signal information table, for example, deletes the content stored in the signal information table and more than one year away from the current time.

In the above process, the statistics module performs statistics on the mask operation information to generate a mask statistic value of each frequency information, and taking the mask operation information in table three as an example, the mask statistic value of each frequency information generated after statistics is shown in table five.

Watch five

The statistical threshold value prestored in the storage module is set to be 2 times, then the matching module matches the shielding statistical value obtained by statistics with the statistical threshold value, the shielding statistical values with frequency information of X1Hz and X4Hz are matched for more than 2 times, at the moment, the alarm module sends frequency alarm information to remind managers that the frequency information of the wireless signals with the frequency information of X1Hz and X4Hz interferes with the number of times of wagon balance work, and the wireless signals with the two frequencies need to be paid major attention.

The monitoring module monitors the running state of the processing module, when the running state of the processing module is monitored to be an abnormal running state, the alarm module sends abnormal state information such as abnormal work processed by the prevention and control instrument, and after knowing the abnormal state information, a manager needs to maintain the processing module at the first time to ensure the normal running of the processing module.

Example two

The difference from the first embodiment is that the storage module in the present embodiment prestores an exception type, the receiving module is further configured to receive maintenance information of the processing module, and the storage module stores the maintenance information according to the exception type, where the maintenance information includes an exception expression and a maintenance method.

In consideration of the fact that when the processing module is in an abnormal state, sometimes a manager may need to maintain the processing module, but the manager is not a person with professional maintenance knowledge, in this embodiment, the receiving module may also receive maintenance information of the processing module, and after the storage module stores the maintenance information, when the processing module is abnormal, the manager may find out a maintenance method corresponding to the same abnormal performance as that of the current processing module by checking the maintenance information, and complete maintenance of the processing module according to the maintenance method.

In order to improve the search efficiency of the administrator, the maintenance information is also stored according to the abnormal category in the embodiment, as described in table six.

Therefore, when the manager searches, the range needing to be searched can be reduced through the abnormal category, so that the searching efficiency is improved, the processing module is maintained in time, and the normal operation of the processing module is ensured.

The foregoing are merely exemplary embodiments of the present invention, and no attempt is made to show structural details of the invention in more detail than is necessary for the fundamental understanding of the art, the description taken with the drawings making apparent to those skilled in the art how the several forms of the invention may be embodied in practice with the teachings of the invention. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (9)

1. The prevention and control system of the weighing monitoring prevention and control instrument comprises a receiving module, a monitoring module and a control module, wherein the receiving module is used for receiving wireless signals;

The sampling module is used for sampling the received wireless signals to obtain the frequency information of the wireless signals;

the storage module is used for prestoring frequency information of suspected signals;

the matching module is used for matching the frequency information obtained by sampling with the frequency information of the prestored suspected signal;

the processing module is used for shielding the wireless signal;

the method is characterized in that: the storage module is further used for storing the sampled frequency information and the wireless signal in a correlation manner and generating a signal information table, wherein the signal information table comprises signal types and frequency information, and the signal types comprise signal types and safety types;

the device also comprises an identification module, wherein when the frequency information obtained by sampling matched by the matching module is the same as the prestored frequency information, the identification module identifies the working state of the weighing equipment, and when the weighing equipment is identified to be in the running state, the processing module carries out shielding operation;

the system also comprises a modification module, wherein the receiving module is also used for receiving modification information, and the modification module is used for modifying the safety type in the signal information table from 'dangerous' to 'safe' according to the modification information and modifying the frequency of the prestored suspected signal;

The storage module prestores self-repairing information; when the frequency information obtained by sampling matched by the matching module is the same as the pre-stored frequency information, if the identification module identifies that the working state of the weighing equipment repeatedly changes in the running state and the leisure state during the existence of the wireless signal, the modification module modifies the safety type in the signal information table from 'dangerous' to 'safe' according to the self-repair information and modifies the frequency of the pre-stored suspected signal.

2. The prevention and control system of the weighing monitoring prevention and control instrument according to claim 1, characterized in that: the device also comprises an alarm module, and when the processing module carries out shielding operation, the alarm module sends alarm information.

3. The prevention and control system of the weighing monitoring prevention and control instrument according to claim 1, characterized in that: the storage module is further configured to store the shielding operation information, where the shielding operation information includes time and number of times of performing the shielding operation and frequency information of the wireless signal shielded by the shielding operation.

4. The prevention and control system of the weighing monitoring prevention and control instrument according to claim 3, characterized in that: the device also comprises a statistic module used for counting the shielding operation information and generating a shielding statistic value of each frequency information according to the shielding frequency information.

5. The prevention and control system of the weighing monitoring prevention and control instrument as claimed in claim 4, wherein: the storage module is preset with a statistical threshold, and the matching module is further used for matching the statistical shielding value obtained by statistics with the statistical threshold;

the device also comprises an alarm module, and when the shielding statistic value is greater than the statistic threshold value, the alarm module sends frequency alarm information.

6. The prevention and control system of the weighing monitoring prevention and control instrument according to claim 2, characterized in that: the monitoring module is used for monitoring the running state of the processing module, and the alarm module sends abnormal state information when the processing module is monitored to be in abnormal running.

7. The prevention and control system of the weighing monitoring prevention and control instrument according to claim 6, characterized in that: the receiving module is further used for receiving maintenance information of the processing module, the storage module stores the maintenance information, and the maintenance information comprises abnormal performance and a maintenance method.

8. The prevention and control system of the weighing monitoring prevention and control instrument according to claim 7, characterized in that: the storage module is prestored with abnormal categories, and the storage module is used for storing the maintenance information in a classified manner according to the abnormal categories.

9. The prevention and control system of the weighing monitoring prevention and control instrument according to claim 1, characterized in that: the receiving module is also used for receiving clearing information, and the modifying module clears the stored signal information table according to the clearing information.

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