815results about How to "Improve safety and reliability" patented technology

The car battery system of the present invention is provided with a battery block 2 that retains a plurality of battery cells 1 in a stacked configuration and has a terminal plane 2A, which is coincident with terminal surfaces 1A established by positive and negative battery cell 1 electrode terminals 13; and with a battery state detection circuit 30 that connects with the electrode terminals 13 of each battery cell 1. The battery system is provided with a circuit board 7 with surface-mounted electronic components 40 that implement the battery state detection circuit 30. The circuit board 7 is a single-sided board with electronic components 40 mounted on only one side, and the circuit board 7 is attached to the battery block 2 opposite the terminal plane 2A with the side having no electronic components 40 facing the battery block 2. The positive and negative electrode terminals 13 of each battery cell 1 are connected with the circuit board 7 for connection to the battery state detection circuit 30.

The invention discloses a consortium chain-based digital bill trading system construction method, which develops a brand-new bill display form, namely, a digital bill in combination with existing bill attributes, laws and regulations and market by taking a consortium chain as technical support. Compared with an existing electronic bill, the digital bill is totally different from the electronic bill in technical framework, not only has all functions and advantages of the electronic bill but also fuses the advantages of a block chain technology, and is a securer, more intelligent, more convenient and more promising bill form. In addition, the block chain technology is applied to the field of bill businesses for the first time; a unified standard bill trading platform is established; the problems of trade background forgery, bill authenticity authentication failure, paper bill multi-time selling, non-synchronous electronic bill discounting and bill endorsing, and the like are solved; and various risks are effectively managed, controlled and prevented.

The invention discloses an electric power supply device with an electric shock protection function. The electric power supply device comprises a power supply seat and a power supply head, wherein the power supply seat consists of a transmission part and a power supply part; a first threaded rod is arranged in the transmission part and is provided with a guidance sliding block; the first threaded rod extends to two sides; the left side extension end of the first threaded rod is in running fit connection with a first motor; the right side extension end of the first threaded rod is in rotation connection with a power supply part; the bottom of the guidance sliding block is fixedly connected with the power supply head; the right side end surface of the power supply head is provided with a contact pin; and a second sliding cavity, a power supply cavity and a wire guiding cavity, which are oppositely arranged with the power supply head, are arranged in the power supply part in sequence from left to right. The device has a simple structure, the possibility of accidental electric shock due to an unplugging state can be effectively avoided, in addition, automatic plugging control can be realized, plugging stability is improved, and the possibility of electric shock due to the contact of people can be lowered.

Disclosed is a cotton-free electronic cigarette, a heat-insulating and heat-dissipating component of a vaporizer device of the cotton-free electronic cigarette, and a method for heat insulation and heat dissipation. The heat-insulating and heat-dissipating component consists of a heat insulation sleeve and a vapor flow passage. The heat insulation sleeve is provided inside an outer pipe and outside a vaporizer unit. The heat insulation sleeve, the outer pipe and the vaporizer unit have a same central longitudinal axis. A method for heat insulation and heat dissipation of the cotton-free electronic cigarette comprises: dissipating heat generated from the vaporizer unit along the vapor flow passage formed between an exterior longitudinal flat surface of a liquid storage cup and the heat insulation sleeve, and discharging the heat outside the cotton-free electronic cigarette through thermal conductivity of the heat insulation sleeve.

Disclosed is a wireless charging system with multi-load frequency adaptability. A primary electric energy transmitting device comprises a rectifying and filtering circuit, a DC/DC conversion circuit, a drive and control circuit, an inverse circuit, a transmitting coil, an information receiving and processing circuit, a resonance compensation capacitor array and a resonance compensation inductor array. A secondary electric equipment device comprises a receiving coil, a resonance compensation circuit, a high-frequency rectifying and filtering circuit, a drive and control circuit, an information management and feedback circuit, a DC/DC conversion circuit and a battery. The information receiving and processing circuit of the primary electric energy transmitting device receives feature information fed back by the information management and feedback circuit of the secondary electric equipment device by means of wireless bluetooth communication, electric energy output frequency of the inverse circuit is controlled according to the feature information, and a working mode of the primary electric energy transmitting device is determined according to capacitor and inductor combination modes in the resonance compensation capacitor array and the resonance compensation inductor array.

A method for optimizing the flexible constraints of an electric power system includes a step S1 of expressing the total power generation cost of the electric power system by using the sum of quadratic functions of active power outputs of all generator sets in the system and constructing an objective function, a step S2 of selecting a multi-dimensional flexible optimization model or a flexible power generation cost optimization model according to the practical situation of the electric power system and the practical purpose of optimization, a step S3 of determining the operating conditions of the electric power system, and a step S4 of carrying out load flow calculation.

The present invention provides a method for protecting a biological characteristic formwork, a device and a system thereof, wherein the method comprises the following steps: ciphering the biological characteristic data of the user with the key for generating the ciphered biological characteristic data; and bonding the key with the biological characteristic data of the subscriber for generating the biological key corresponding with a ciphered biological characteristic data. The invention ciphers the biological characteristic data with the conventional key and bonds the conventional key with the biological characteristic data of the subscriber to generate the biological key corresponding with the ciphered biological characteristic data thereby obtaining the purpose of increasing the security and reliability for protecting the biological characteristic data. At the same time the security and reliability of biological identification are increased.

The invention discloses an information device, which comprises a base body and a connection part arranged at the left side of the base body. The base body is provided therein with an empty groove. The upper side and the lower side of the empty groove are both provided with a first sliding groove. Each sliding groove is provided with a stud bolt. The left side end of the stud bolt is connected with a motor. The right side inner wall of the empty groove is provided with a first groove part; the left side inner wall of the empty groove is provided with an electrical connection rod. The empty groove is provided therein with a push-and-pull block whose upper side and the lower side probe into the first sliding grooves at the upper side and the lower side of the empty groove and which cooperates and is flexibly connected with the empty groove. The push-and-pull block inside the first sliding grooves is in threaded connection and cooperation with the stud bolt. The left side end face of the push-and-pull block is provided with a first electrical connection hole arranged corresponding to the first electrical rod; and between the left side end face of the push-and-pull block and the first sliding grooves are provided with electrical connection wires. The wall body at the left side of the base body is provided therein with an insertion and combination groove. The right side inner wall of the insertion and combination groove is provided with a second electrical connection rod. The information device of the invention has a simple structure, is convenient to operate, and achieves high security and connection fastening performance.

The invention discloses a built-in intelligent failure diagnosis device based on data fusion mode recognition in the technical field of intelligent diagnosis of rail transport failure, which comprises a hardware structure and a software structure. The diagnosis device adopts high-speed DPS microprocessor and forms a distributive monitor processing system, that is, a two-level microcomputer structure with a supervisory machine and a subordinate machine with the help of a multiple-stage buffer and streamline mechanism in the high-speed data processing of the former. Besides, in coordination with sensor group information based on data fusion mode recognition and with the help of multiple neural network partial diagnosis and a decision-making level fusion mode recognition and intelligent diagnosis mechanism, the invention is able to realize the data storage, image display and long-distance data transmission, so as to complete the task of failure diagnosis. Therefore, the invention is able to detect the potential failure of key equipments for train, ensure the safety and reliability for the operation of key equipment in train and improve the operation efficiency and safety guarantee to the maximal extent.

A method and apparatus for resetting a valve lift for use in an engine brake. A brake piston (160), and a hydraulic fluid passage (214) are arranged within a rocker arm (210) or a valve bridge (400) of an engine. A resetting valve arranged between the rocker arm (210) and the valve bridge (400) is driven by a change in the distance between the rocker arm (210) and the valve bridge (400). When the valve lift of an engine exhaust valve (300) reaches a maximum, a reset fluid passage (219) is opened, the hydraulic pressure within the hydraulic fluid passage is released, the brake piston (160) is reversed by one interval, the motion transmission between a cam (230) and the engine exhaust valve (300) is partially disengaged, and the valve lift of the engine exhaust valve (300) is reduced. Also, during a returning process of the valve lift of the engine exhaust valve (300) after reaching the maximum position, repositioning of the reset valve is used to maintain a supply of pressure within the hydraulic fluid passage, the brake piston (160) is allowed to be positioned at an extended position, and the motion transmission between the cam (230) and the engine exhaust valve (300) is resumed. The apparatus for resetting the valve lift can be integrated within an engine exhaust valve brake, and is structurally simple, convenient to install and to adjust, thereby improving safety and reliability.

The embodiment of the invention provides a method, system and authentication terminal for accomplishing a service by multi-factor identity authentication, belonging to the technical filed of communication. The method comprises the steps of: receiving an authentication request message transmitted by a user side or a server, wherein the message includes user information and information of service application; forwarding the request message to the authentication terminal corresponding to the user information, wherein the authentication terminal carries out the multi-factor identity authentication on a user according to the received request message and the obtained identity information; after the authentication terminal acknowledges the identity of the user: (1) transmitting acknowledgement information which responds to the request message, receiving the acknowledgement information and accomplishing the service corresponding to the service information; or (2) forwarding the acknowledgement information to the server to enable the server to accomplish the service corresponding to the service information. Unlike the prior art, the method, system and authentication terminal disclosed by the invention are free from transmitting the authenticated identity information in a network, so that the security and reliability of authentication are greatly increased.

The invention relates to a method and a device for mounting optical glass under vision guide. The method comprises the following steps of: acquiring images of the optical glass on a workbench at the same time by adopting two cameras arranged above the workbench; calculating a rough position of the vertex of the optical glass by adopting two sets of image processing algorithms in a computer respectively; acquiring the image of the optical glass through a camera arranged at the tail end of an industrial robot, and calculating the central position and the azimuth of the optical glass in the computer by adopting the image processing algorithm; and contacting a gripping device and four edges of the optical glass by adopting four vacuum sucking strips, adsorbing the optical glass from the workbench through an adsorption force, and placing the optical glass into a glass framework. The device comprises the industrial robot, an upper vision identifying unit, a front-end vision positioning unit and a control cabinet. The industrial robot faces the workbench on a zero-potential surface, and the glass framework is positioned on the rear side of the robot. The front-end vision camera can acquire the position of the glass framework.

The present invention relates to an electric dual-opened plug door system for a track train, and has the structure that a loading driving mechanism is positioned at the upper part of the train body; a door leaf is connected with the loading driving mechanism through a holding door frame; transmission shafts at the two sides of the train door are connected with the small hanger of the loading driving mechanism through flaps, and then arranged at the two sides of the train body after being connected with a locking device at the middle-lower part of the train door; a roller in a lower swing arm device is arranged in a lower lead rail at the lower part of the train door; an external operational device and an emergency operational device which is arranged at the inner side of the train body are connected with the locking device through steel cables; the lock rail of the door leaves is arranged to match the lock hook on the locking device; the present invention has the advantages that the multi-class locking device strengthens the safety and the reliability of the train door system; through adopting the square lead rail and the slide block loading mechanism, as well as the cross coordinate working manner formed by square lead rails and short lead pillars, the structure of the loading device is compact and the loading capability is improved, and the installation, adjusting and maintenance of the loading device are easy and convenient. The present invention meets the demands of the high speed, safety, reliability, sealing, and sound and heat insulation for the door system of the intercity railway transportation.

The invention discloses a quantum key distribution system for safety communication of an electric vehicle intelligent charging network. The quantum key distribution is realized on the basis of a hierarchy KDC (Key Distribution Centre) mode. The distribution of the quantum key distribution system is performed by a key distribution unit. The key distribution unit comprises a key management module (1) and a key management module (2) of a charging station. The key management module (1) is positioned in an operation management center. Communication and transmission of data and commands are performed between the key management module (1) and the key management module (2) reciprocally via classic channels. Keys are provided for the key management module (2) by the key management module (1) via quantum channels. According to the quantum key distribution system for safety communication of the electric vehicle intelligent charging network, disclosed by the invention, unconditional safety communication of the data is realized, and stability and safety of the network operation are guaranteed.

The invention provides a control chip of a digital electronic detonator, comprising a central processing control module, a communication interface module, a clock circuit module, a memory module, a detonation safety verification control module, an ignition control module, a functional status detection module, a safe threshold value voltage detection module, a power module, a charging module and adischarging module. The detonation safety verification control module is convenient for the safety supervision of the chip and a system; the safe threshold value voltage detection module and the functional status detection module improve the safe reliability of the chip and the system. The control chip of the digital electronic detonator also comprises an external clock circuit module, a self-adaption bridge-wire detection control circuit and a self-adaption time precision control circuit, and improves the delayed precision and the consistency of the chip.

This invention includes multiple ask for help computers with ask-for-help programs, at least one set is a server with network-help server programs and multiple supporting party computers with supporting programs. The 'ask-for-help' party is the computer client utilizing said system, the supporting party is the service personnel providing service to one or many ask-for-help parties, the server searches for suitable supporting party for the ask-for-help party who has asked for help and keeps relative information into database of the server. The supporting party can examine the computer screen to remote-control the ask-for-help computer attached with network phones, telephones to transmit software and files to solve the operation problems for the ask-for-help parties to increase their computer performance. This invention also puts forward a realization method.

The invention provides a cloud computing-based safety backup system and method. The safety backup system comprises a cloud terminal, a cloud backup center, and a data center, wherein the cloud terminal is configured on local information processing equipment and is used for executing file backup recovery operation, generating backup file snapshot, extracting file information, inquiring and downloading files and recording operation information; the cloud backup center is used for managing the cloud terminal, setting backup recovery strategy information, managing backup data and managing backup file operation authorization; and the data center is used for storing the file information, the file snapshot, the backup file storage information and the authorization information. Compared with the prior art, the cloud computing-based safety backup system and method have the advantages of improving the file backup, inquiry and recovery efficiency of massive data based on the cloud computing and improving the file management safety and reliability by uploading the backup files, the file snapshot and the calculated MD5 values of the files, have a rapid previewing function, can realize rapid file downloading and recovery and can solve the problem of coverage of files with same name.

The invention discloses a whole prick cash dispenser device, which comprises a main control device, and further comprises a money box which is arranged in a cash dispenser device body, the top end of the money box is equipped with an opening, the inner portion is equipped with a cash raising mechanism, a cash slot which is used to take and put cash is arranged on the front end of the cash dispenser device, the cash slot is equipped with a gate which can be opened and closed, a cash dispenser channel which is used to output cash which is output in the money box to the cash slot is arranged on the upper portion of the money box, and a cash cycle sending mechanism which is arranged in the inner portion of the cash dispenser device body, is arranged on the upper portion of the money box and is connected with the cash dispenser channel is used to send quantitative cash to the cash dispenser channel and/or send the cash to the money box according to the controlling of the main control device. Using the whole prick cash dispenser device, the safety and the reliability of the whole prick cash dispenser device are increased, thereby achieving to rapidly extract large cash for clients, and omitting the work pressure to count the cash for bank tellers.

The invention discloses a face deception detection system adversarial sample generation method based on an adversarial generative network, and the method can achieve the quick generation of adversarial samples in a large scale according to an original sample image through employing the adversarial generative network technology. Meanwhile, the glasses shape mask is utilized, so that the added countermeasure disturbance is limited in the range of the glasses shape, the actual physical attack can be conveniently carried out in subsequent actual manufacturing, and the countermeasure sample has higher practical value. On the other hand, different face deception detection networks or traditional methods are accessed to the overall training framework, so that adversarial samples for different detection methods can be conveniently generated. The problem that the face spoofing detection system lacks enough adversarial samples in the training process is effectively solved. The confrontation samples of the face spoofing detection method can be automatically generated on a large scale, the difficulty of obtaining a large number of confrontation samples for network training is reduced, and thesafety and reliability of the face spoofing detection method and the face recognition system are improved.

The invention discloses a charging device for an environmentally-friendly new energy electric car. The charging device comprises a charging box body fixed to a wall body, a containing cavity is formed in the charging box body, and first sliding grooves are formed in the upper side and the lower side of the containing cavity correspondingly. A screw is arranged in each first sliding groove, the left side end of the screw of each screw is in power connection with a motor, and a first sinking groove is formed in the inner wall of the right side of the containing cavity. First conductive pillars are arranged on the inner wall of the left side of the containing cavity, and the containing cavity is internally provided with a movable sliding block, wherein the upper side and the lower side of the movable sliding block extend into the first sliding grooves of the upper side and the lower side of the containing cavity correspondingly, and the movable sliding block is connected with the first sliding grooves in a sliding fit mode. The movable sliding block in the first sliding grooves is in threaded and matched connection with the screws, first power supply holes opposite to the first conductive pillars are formed in the end face of the left side of the movable sliding block, and an elastic power supply wire is arranged between the end face of the right side of the movable sliding block and the first sinking groove. An inserting groove is formed in the wall body of the left side of the charging box body, and second conductive pillars are arranged on the inner wall of the right side of the inserting groove. The charging device for the environmentally-friendly new energy electric car is simple in structure, convenient to operate and high in safety and connecting fastening property.

The invention provides a power distribution unit which is time-sharing charge and belongs to the industry control technique field. The structure thereof comprises a power supply plug row, a logic control unit, an input terminal connector and an AC-DC converting circuit; the input terminal connector is connected with the power supply, and provides the power distribution device with full power, the power supply plug row is connected with the logic control unit through a signal winding displacement, the AC-DC converting circuit can convert 220V voltage AC to 5V TTL voltage DC in switching power supply way which can be supplied for the logic control unit, the device adopts a single-chip as a delay output logic controller, and collects the delay setting on the control panel, thus reaching the effect of respectively controlling the switch circuit of each plug and executing accurate time-sharing charge thereof. The device also can measure and display the total load current and provide overcurrent protection. The invention can solve the problem that the instant current which is caused by multi-load in industrial application charged simultaneously is too big so as to bring device damage and electric fence fluctuation, thereby improving the reliability and security of the device.

The invention discloses a test device for the second lubricative characteristic of slideshoe of an axial stem bump, which consists of a hydraulic dynamic system, a lubrant film detecting panel and a monitoring control system. The hydraulic gear provides the high pressure oil supply to the lubricative film detecting panel. The lubrant film detecting panel is used to test and research the characteristic of the slideshoe on different working condition; The monitoring and control system can real-time monitor the test condition, collect multiple working parameters in test process and finish works such as test data analysis and processing. The test device adopts computer to on-line monitoring various working conditions in the process of test, therefore, provides a high safety and reliability. The test condition is adjustable and test fittings is easy to be replaced.

The invention discloses arc extinguish chambers of a high voltage alternating current SF6 pot-type breaker. The invention is characterized in that an arc extinguish chamber system comprises a shell with the arc extinguish chambers, plum blossom contact systems, fixed contact systems, capacitor assembling units, air cylinder systems, a mechanical drive system, ion capturing systems, compressed airpiston assembling units, intermediate contact assembling units, insulation supporting bars, moving end large shields and fixed end large shields; the arc extinguish chambers are of double-break structure and are symmetrically distributed, with the mechanical drive system as the center; the middle mechanical drive system moves along the vertical direction; and vertical movement of the mechanical drive system is transformed to horizontal movement through crankarms and connecting rods in the mechanical drive system to drive the two air cylinder systems of the arc extinguish chambers to move horizontally to switch off and switch on the switchgear. Through promoting the technology of the integral arc extinguish chamber of the breaker, the arc extinguish chambers have more uniform electrical field, high insulation level, stronger breaking capability and high current-carrying capability and is safer to operate.

The invention provides a backplane bus type structure of a vibration monitoring and protecting device and a communication control method of the backplane bus type structure. The backplane bus type structure of the vibration monitoring and protecting device comprises a monitoring and protecting device backplane and a monitoring and protecting device function module. The monitoring and protecting device backplane consists of a backplane bus and a plurality of bus slots. The backplane bus is simultaneously connected to the bus slots. Function modules in the monitoring and protecting device function module are respectively and correspondingly connected with one of the bus slots, so that the communication is realized by the backplane bus. The invention provides a backplane bus type vibrating monitoring and protecting device and a communication control method among the internal function modules of the backplane bus type vibration monitoring and protecting device, so that the full-period synchronous collection of real-time large-capacity full-waveform data of mechanical vibrating signals, the vibration fault characteristics extraction, the monitoring and protection, and the online analysis and diagnosis are realized; and the hot plugging and the plug-and-play of the modules are realized. Therefore, the defects that the traditional devices or products are difficult to realize the real-time processing of the large-capacity full-waveform data are overcome.

The invention discloses a control method of an electronic expansion valve of an automobile air conditioner system. The method includes acquiring a result of the judgment of whether the electronic expansion valve is currently in the fault state or not according to the acquired current openness, actual overheat degree Tsh and preset overheat threshold Tsh_set of the electronic expansion valve while conducting overheating degree control and outputting a control signal to an execution mechanism according to the result of the judgment. By means of the control method, effective fault diagnosis can be conducted on the electronic expansion valve in real time. When the overheat degree is mistakenly controlled, the control signal is output to the execution mechanism to stop work of the system by controlling a compressor to shut down and/or remind operators to conduct fault overhauling by controlling a fault indicator lamp to be turned on, so that accidents of refrigeration system device damage caused by mistaken control can be completely avoided, and system running safety and reliability can be improved.

The invention discloses an auxiliary heating system for a liquid-metal-cooled natural circulation reactor. The auxiliary heating system comprises a nitrogen storage tank (1), a filter (2), a gas heater (3), a hot nitrogen input pipe (4), a main container (5), a safety container (6), gas extractors (7), pipelines and valves, wherein the pipelines and the valves are used for interconnecting devices. The system has the advantages that the function that a liquid-metal coolant in a liquid metal pool type reactor is subjected to auxiliary heating from the outside of the main container of the reactor is realized, the system is simple in structure, components in the reactor are not required for being added or started during operation, so that liquid metal in the main container can form micro natural circulation after the operation of the system, and meanwhile, the reliability and safety of the reactor can be effectively improved.

The invention provides an independent unmanned aerial vehicle landing method based on a two-dimensional code and inertial navigation assistance. An unmanned aerial vehicle, an onboard camera, an onboard computer, a GNSS positioning device, an inertial measurement component and a two-dimensional code with authorization information are arranged. The unmanned aerial vehicle flies near a landing pointby GNSS/INS combined navigation; with an image identification two-dimensional code collected by the camera, the authorization information is read when the image identification two-dimensional code matches a two-dimensional code information database successfully; the unmanned aerial vehicle determines the location of the center point of the two-dimensional code under the coordinate system of the unmanned aerial vehicle and an attitude of the unmanned aerial vehicle under a two-dimensional code local coordinate system by means of visual and inertial combined navigation; and the attitude of theunmanned aerial vehicle is adjusted and automatic landing is carried out by controlling offsets of the landing point and the landing attitude. Compared with the prior art, the method has the followingadvantages: the operation becomes easy; deployment costs are low; the environmental interference is eliminated; the stability and safety are high; and the method is suitable for various fields of logistics freight transportation and disaster relief and the like and is easy to promote.

The invention discloses an high-low voltage interlocking detection circuit of an electromobile. The detection circuit comprises a first detection branch circuit for detecting voltage of a first low voltage terminal to output a first voltage detecting value, a second detection branch circuit for detecting voltage of a second low voltage terminal to output a second voltage detecting value, a filter connected between the first detection branch circuit and the second detection branch circuit, a controller for recognizing a connecting state of a connector according to the first voltage detecting value and the second voltage detecting value. Through the adoption of the detection circuit, the current connecting state of the connector can be accurately recognized, the connecting state comprises a complete connection state, a virtual connection state, an open circuit state, a short circuit state relative to the ground, and a short circuit state relative to a power source; the reliability and the safety of the detection circuit are higher. The invention further discloses the electromobile, and an electromobile interlocking signal detection method.

The embodiment of the invention provides a hacking defending implementation method and device. The method comprises the following steps of: monitoring login data of various IP addresses, and obtaining the login time and the failure time on the various IP addresses; and, for each IP address, executing the following operations: determining the failure probability corresponding to the obtained login time according to the obtained login time and failure time; judging whether the determined failure probability is greater than a failure probability threshold value corresponding to the login time on a pre-established threshold value curve or not, wherein the threshold value curve is a curve, which is established according to a login log and used for representing the corresponding relationship between the login time and the failure probability threshold value; if the determined failure probability is greater than the failure probability threshold value, determining abnormal login exists in the IP address; and if not, determining that abnormal login does not exist in the IP address. Hacking behaviours can be defended in a dynamic threshold value manner; the hacking behaviours can be detected more accurately and effectively; and the network safety is improved.

The invention relates to cheating prevention electronic weighing apparatus calibrating system and method. The calibrating system comprises an electronic weighing apparatus, an electronic weighing apparatus calibrating device and a metering supervisory management platform, wherein the metering supervisory management platform comprises an electronic weighing apparatus, a calibrating device, databases comprising various identity information and operating information of a calibrating staff and a computer or a server for carrying the databases, and establishes direct or indirect data communication link by a network and the calibrating device. The system is provided with a card swiping unit and an authenticating unit, a calibrating mode of the traditional electronic weighing apparatus can be changed, the calibrating operation is transmitted to the calibrating device to be carried out so as to ensure the electronic weighing apparatus can not independently finish the calibrating program, which enhances the safety and reliability of calibration and effectively prevents illegal calibration, thereby effectively preventing a behavior for cheating on the electronic weighing apparatus by the illegal calibration on the electronic weighing apparatus.