123results about How to "Know in time" patented technology

The invention discloses a mobile internet based teaching-and-studying dual terminal application system and a realizing method thereof. The mobile internet based teaching-and-studying dual terminal application system comprises a server, a teaching terminal and a studying terminal, wherein the teaching terminal and the studying terminal are respectively connected with the server. The teaching terminal is used for receiving operating orders from teachers, opening a teaching content editing module, editing new teaching content to fill into a question bank or directly selecting the teaching content from a question database in a server terminal, setting type of the teaching content after editing is finished, and saving the teaching content in the server. The server is used for issuing the teaching content and mission instructions within a mission to the studying terminal according to teaching mission requirement, starting a timing function after the teaching content mission is distributed, and issuing order to collect mission finishing results when time is up. By the aid of the mobile internet based teaching-and-studying dual terminal application system and the realizing method thereof, interaction efficiency in class is benefited to be improved, and teaching result of knowledge points can be known in time.

The invention provides a remote monitoring and alarm device for a transformer substation. The remote monitoring and alarm device comprises a single-chip microcomputer control module, an anti-theft alarm module, an abnormal situation alarm module, a GSM (global system for mobile communication) communication module, a video acquisition module, a sound recording module and a power supply module, wherein the GSM communication module is connected with the single-chip microcomputer control module to enable the single-chip microcomputer control module to perform wireless communication with a mobile phone of an electric power worker or an electric power monitoring center; the abnormal situation alarm module, the anti-theft alarm module, the video acquisition module and the sound recording module are respectively connected with the single-chip microcomputer control module; and the power supply module is used for providing power supply voltage for the whole monitoring and alarm device. When an abnormal situation or a stealing phenomenon occurs in the transformer substation, by dialing the mobile phone of the electric power worker or contacting with the monitoring center, the electric power worker can timely know the situation in the transformer substation; and furthermore, through field sound and a monitoring video, the handling of the abnormal situations and the detection of stealing cases can be realized very conveniently.

The invention relates to the field of smart homes, and discloses a wireless network node and a state update method thereof. The state update method of the wireless network node comprises the steps that each node in a wireless network periodically send a state broadcast message with a preset cycle, wherein the state broadcast message at least carries the identification number of the node and the current state information of the node; the node receiving the state broadcast messages records the current state information of other nodes carried in the received state broadcast messages, wherein if each node in the wireless network receives the state broadcast messages of the other nodes when needing to send the state broadcast message, the recorded current state information of other nodes are carried in the sent state broadcast message. According to the state update method of the wireless network node, the nodes in the wireless network can periodically send the state broadcast messages and carry the received current state information of other nodes, and thereby the state of each device node in a smart home system can be automatically updated, and the user experience is enhanced.

The invention discloses a storage shelf for logistics storage, which comprises a cavity inside the base, a plurality of lower magnet blocks at the inner bottom of the cavity, and a plurality of magnet blocks in the cavity between the upper magnet block and the lower magnet block. The decompression air bag is provided with support rods at the four corners of the upper side of the support plate, movable brackets are arranged at the upper ends of the support rods, telescopic rods are provided at the four corners of the lower side of the movable brackets, and an accommodating cavity with an upper end opening is provided inside the support rods to accommodate The interior of the cavity is provided with a motor, the output end of the motor is provided with a threaded rod, the interior of the telescopic rod is provided with a threaded cavity with an open lower end, the upper end of the threaded rod is threaded with the threaded cavity, and the inner lower and upper ends of the support rod are respectively provided with a lower The placement board and the middle placement board, the inner middle part of the telescopic rod is provided with the upper placement board, and the upper side of the lower placement board, the middle placement board and the upper placement board are all embedded with pressure sensors. Good, long service life, low labor intensity and high safety.

The invention discloses an intelligent emergency evacuation control system and an implementing method of the intelligent emergency evacuation control system. The system comprises a photoelectric indication board with a direction indicating function, a remote control warning and receiving device, a fire source smoke detector, an alarm broadcasting device, a control center and a control cabinet, wherein the fire source smoke detector is used for detecting fire alarm signals and transmitting the fire alarm signals to the control cabinet. The fire alarm signals are processed by the control cabinet and are transformed into warning signals transmitted to the control center. The control center receives fire alarm confirmation signals through the remote control warning and receiving device, confirms the warning position, and calculates the best evacuation route. The control center sends control signals to the photoelectric indication board to indicate the evacuation direction. According to the intelligent emergency evacuation control system and the implementing method of the intelligent emergency evacuation control system, an existing fire alarm monitoring device is fully utilized, the intelligent emergency evacuation control system and the implementing method of the intelligent emergency evacuation control system are high in degree of automation, have a fire alarm prompting function with the integration of sound, light and electricity, and have various alarm notifying modes, so that fire caused by carelessness of operators on duty is effectively prevented, and manual warning and automatic prewarning are realized.

The invention discloses a device or a method for realizing remote monitoring, relating to the fields of electronic technique and communication. The device comprises a communication host, one or more auxiliary machine and a monitoring strategy and is characterized in that: the communication host comprises a modulation-demodulation module, a master processor, a low-power wireless receiving module, a data storage module, a power supply module and the like; the auxiliary machine comprises at least one low-power wireless transmitting module; and when the device is in use, the communication host receives a wireless signal from the auxiliary machine and judges whether the wireless signal falls in the monitoring range and simultaneously automatically dials for distress call by responding to a distress call request of the auxiliary machine. The device is characterized by simple structure, convenient operation, having obvious social benefit and the like.

The invention discloses a household gas intelligent monitoring system. The household gas intelligent monitoring system comprises a mobile terminal, a server terminal, and a gas flow detection terminal, the gas flow detection terminal is connected with the server terminal, the server terminal is connected with the mobile terminal, the server terminal includes a main controller module, and a first data transmission module, a data storage module, a clock module, a keyboard input module, and a touch display screen connected with the main controller module, the gas flow detection terminal includes a second data transmission module, a microcontroller module, a flow sensor, an analog-to-digital conversion circuit, an amplification filter circuit, and a detection rectification circuit, the flow sensor is connected with the microcontroller module via the analog-to-digital conversion circuit, the amplification filter circuit, and the detection rectification circuit connected in sequence, and the second data transmission module and a second display module are connected with the microcontroller module.

Provided are an auxiliary system based on a vehicle fault diagnostic system and a control method thereof. The auxiliary system based on the vehicle fault diagnostic system comprises the vehicle faultdiagnostic system and a mobile terminal. The vehicle fault diagnostic system is in communication connection with the mobile terminal; the vehicle fault diagnostic system comprises a fault message sending module, the fault message sending module is used for sending a fault message to the mobile terminal; and the mobile terminal comprises a receiving module, a fault analysis module, a 3D display module and a scheme matching module. The provided auxiliary system based on the vehicle fault diagnostic system and the control method thereof have the advantages that a specific fault position, fault degree and fault relevant components are displayed clearly through the mobile terminal, so that a driver can be clear at a glance and perform correlation processing quickly according to a fault repair scheme, and the fault repair efficiency is improved.

Provided are an agricultural growth control system and an agricultural growth control method. The system comprises a sensor and a mobile terminal, wherein the sensor acquires agricultural growth information, the mobile terminal acquires the agricultural growth information acquired by the sensor and transmits the agricultural growth information into a cloud server, and the cloud server calculates the agricultural growth information to obtain agricultural farming information, feeds the agricultural farming information back to the mobile terminal and displays the agricultural farming information on the mobile terminal. By adopting the scheme, an agricultural production farmer having the mobile terminal can timely know the present agricultural growth information (crop growth data), can know framing measures should be adopted in the existing agriculture and timely acquires the agricultural growth information, and therefore the agricultural growth control system and the agricultural growth control method provide powerful guarantee for harvest of agricultural production.

The invention provides a seat-type vital sign detection device and a detection system, and belongs to the field of medical equipment. The system comprises a user terminal, a cloud server and the seat-type vital sign detection device, wherein the device comprises a ballistocardiogram acquisition module, a meridian signal acquisition module, a signal processing module, an alarm module and an LORA wireless communication module; signal characteristics are extracted from acquired ballistocardiogram signals and meridian signals, which are processed, by virtue of the cloud server; the signal characteristics are compared with a pre-saved model which shows a physical condition, so that a vital sign detection result of a user is obtained; then, a corresponding alarm signal, which is generated from the vital sign detection result, is transmitted to the alarm module; the alarm module, in accordance with the alarm signal which is transmitted by virtue of the cloud server, can conduct alarm, so that the user's physical condition can be rapidly detected out and the user can timely master dangerous situations; and in addition, the user can check and master own physical condition in real time on a user terminal, so that misfortunes are prevented.

The invention relates to a remote online driving management and control system and method. The system comprises a user authentication module, a remote management and control platform, a local equipment module and a remote driving module. The method comprises the following steps: receiving riding request information of a passenger, generating driving route information according to the riding request information, generating a driving command according to a driving operation executed by a local driver by referring to the driving route information, controlling the vehicle to run according to the driving command, and uploading vehicle running state data information to a remote management and control platform. According to the system and the method, a driver is separated from a riding user, safety of passengers and drivers is guaranteed, safety events between the passengers and the drivers are avoided. Meanwhile, the passengers and the drivers can send emergency request information to the remote management and control platform through the corresponding riding user modules and the corresponding local equipment modules in emergency, and timely rescue is guaranteed.

The invention discloses a waterproof power supply casing which comprises a casing body, a casing cover, a buffer layer, a fixing leather cushion, a wire clamp, a buckle base, a buckle, a buckling groove, a sealing device, a first sealing washer, a second sealing washer, a water-absorbing sponge, a flat cable hole, a lock washer, a wire, pads, a leather cushion, a desiccant layer, a lateral water groove, a protruded block and a groove. The sealing device is used between the casing body and the casing cover to improve a waterproof effect. The wire is arranged in the casing body and externally connected with a warner; by utilizing a water accumulation function of the transverse water groove, the wire is connected when there is a small amount of water, and the external warner gives an alarm, so that people can promptly perform handling to exclude potential safety harzards.

The invention discloses a community monitoring method, a device and a device based on image analysis. The community monitoring method comprises the following steps: a time interval is acquired betweena time when a face image of a monitored user is last collected in a first preset time period and a current time, wherein the monitored user is any one of the registered users of the community; whether the time interval exceeds a preset value is judged; when the time interval exceeds the preset value, it is confirmed that the monitored user is an abnormal user; acquiring first monitoring image data of an abnormal user within a second preset period of time, wherein the time at which the face image of the monitored user is last acquired is within a second preset time period, according to the first monitoring image data, the behavior information of the abnormal user in the second preset time period is determined, and the alarm reminder is carried out according to the behavior information, soas to let the outside world know in time when the unexpected situation of the community personnel occurs, and avoid causing serious safety accident.

The invention discloses an equipment access sensing method based on an ARP protocol. The method comprises the following steps: blocking an ARP broadcasting function and a response function of a self operating system; constructing a private ARP request message, wherein the private ARP request message is a message which increases a corresponding private mark with a signature based on an original ARP request message; broadcasting the private ARP request message, at the same time, receiving the private ARP request messages transmitted by other host equipment, and returning a private ARP response message; detecting whether the private ARP request messages transmitted by the other host equipment contain the private mark with the signature or not; if the private ARP request messages transmitted by the other host equipment contain the private mark with the signature and the signature is right, judging the other host equipment as legitimate access equipment, and performing normal communication, and if not, judging the other host equipment as illegal access equipment, and blocking the communication of the illegal access equipment; reporting the information of the illegal access equipment to a server. Through the adoption of the method disclosed by the invention, the equipment access can be quickly and timely found, and the communication of the illegal access equipment is effectively stopped.

The invention discloses a cold-chain logistics refrigerated product transportation quality optimization management system based on big data. The system comprises a transportation route statistics module, a route parameter acquisition module, a route parameter analysis module, a transportation database, a route transfer station statistics module, a transfer residence time analysis module, a parameter processing center, a transportation environment parameter acquisition module, a manual input module, a management server, an intelligent recommendation terminal and a display terminal. According tothe invention, the defects of one-sidedness of transportation route selection and untimely regulation and control of the transportation environment existing in the current cold-chain product logistics transportation are overcome, and then the cold-chain product logistics transportation is optimized, so that the transportation quality of the cold-chain product is improved by the optimization result, the logistics transportation time of the cold-chain product is shortened, and meanwhile, the timeliness of regulating and controlling the transportation environment of the cold-chain products by transportation management personnel is improved, the defects of existing cold-chain logistics management are overcome, and the purpose of optimizing the logistics transportation quality of the cold-chain products is achieved.

The invention discloses an industrial cabinet for storing articles. The industrial cabinet comprises a cabinet body and a cabinet door. The upper end of the cabinet body is provided with a suction fan, an air inlet of the suction fan is connected with a first purification cavity through a pipe, the lower end of the cabinet body is provided with an exhaust fan, an air outlet of the exhaust fan is connected with a second purification cavity through a pipe, the cabinet door is provided with a controller, and the controller is provided with a wireless sending module and a storage module. An air detection sensor is arranged in the cabinet body, the upper end of the cabinet body is provided with a warner, the warner and an air sensor are connected with the controller, four corners of the lower end of the cabinet body are provided with grooves, electric telescopic rods are arranged in the grooves, the lower ends of the electric telescopic rods are provided with universal wheels, the middle of the lower side of the cabinet body is provided with a cavity, a connecting rod is arranged in the middle inside the cavity, the lower end of the connecting rod is provided with a fixed device, and the fixed device comprises a casing and a sucker. The industrial cabinet is simple in structure and convenient to use and move, is placed stably and is high in use safety.

The invention provides an e-commerce logistics tracking method and system for a service product. Business information is sent to message middleware mainly through an e-commerce platform. a first logistics tracking record of the business information is newly added to the e-commerce platform; the service acceptance platform scans the message middleware in a polling manner to obtain the service information and performs service processing on the service information, records a processing result and a processing step of the business information, and sends the processing result and the processing step to the message middleware; the e-commerce platform acquires the processing result and the processing step of the business information platform through polling and scanning the message middleware, and newly adds a second logistics tracking record of the business information. The processing result received by the service product and the detail information of the processing steps are displayed in an e-commerce logistics tracking mode, so that a user can conveniently check the detail information received by the service product, and the user viscosity and the user experience can be greatly improved.

The invention discloses a compound gate management system and a method. The compound gate management system mainly comprises a controller, as well as an exit card reader, an entrance card reader, gates and an RS232 / RS485 (Recommended Standard 232 / Recommended Standard 485) converter which are connected with the controller respectively, and further comprises a 2.4G active label, a management center system and a guard house computer, wherein a ground sensing system is further arranged on the gate. The method comprises the following steps of entering entry vehicle information, opening the entrance gate, entering exit vehicle information, opening the exit gate, and settling parking fee. The system employs a gate management mode combining the ground sensing system with a card reading system, can effectively avoid the disadvantage of incapability of permitting through accurately due to card reading failure, and is connected with the management center system via Ethernet on site, so that the management center can grasp parking places on site and safety conditions in real time, the overall system has the characteristic of reasonable design, and the management method has the characteristics of science, effectiveness and the like.

The invention discloses a mobile terminal photographing control method and device, a mobile terminal and a storage medium. The method comprises the following steps: when the mobile terminal is in a photographing state, obtaining an initial preview picture and current photographing parameters of a viewfinder in a photographing interface of the mobile terminal; generating a basic preview thumbnail based on the current photographing parameters and the initial preview picture, and acquiring photographing parameters to be adjusted of the mobile terminal; adjusting the initial preview picture according to different values of the photographing parameters to be adjusted to obtain reference preview thumbnails corresponding to different values of the photographing parameters to be adjusted; acquiring a selection instruction input by a user based on the photographing interface, and determining a target preview thumbnail in the basic preview thumbnail and the reference preview thumbnails based onthe selection instruction; and updating the current photographing parameters according to the photographing parameters corresponding to the target preview thumbnail. The invention solves the technicalproblem that the user cannot quickly and accurately know the photographing effect corresponding to each adjusting parameter in the camera.

The invention relates to a senior citizen emotion monitoring system based on wearable equipment. The system comprises wearable equipment capable of collecting original emotion data of the elderly, a computing device capable of comparing at least one of the original emotion data with warning data in an emotion library, and an event collection device for collecting life events of the old people. Theevent collection device can transmit the life event to the computing device and thus the computing device at least can screen out warning data having a mapping relationship with the life event from the emotion library based on the life event, so that the computing device is able to determine original emotion data based on the warning data having the mapping relationship with the life event. According to the invention, the warning data corresponding to the life event is screened out based on the life event and then the original emotion data are compared with the warning data to determine whether the emotion change of the elderly triggers the warning data, so that the emotional state of the elderly is judged.

The invention discloses an amplifying and filtering circuit-based household gas intelligent monitoring system. The amplifying and filtering circuit-based household gas intelligent monitoring system includes a mobile terminal, a server terminal, and a gas flow detecting terminal; wherein the gas flow detecting terminal is connected to the server terminal, and the server terminal is connected to the mobile terminal; the server terminal includes a main controller module, a first data transmission module, a data storage module, a clock module, a keyboard input module, and a touch display screen, wherein the first data transmission module, the data storage module, the clock module, the keyboard input module, and the touch display screen are connected to the main controller module; the gas flow detecting terminal includes a second data transmission module, a microcontroller module, a flow sensor, an analog-to-digital conversion circuit, an amplifying and filtering circuit, and a detecting and rectifying circuit, wherein the flow sensor is connected to the microcontroller module by the analog-to-digital conversion circuit, the amplifying and filtering circuit, and the detecting and rectifying circuit which are successively connected, and the second data transmission module and a second display module are connected to the microcontroller module.

The invention discloses a method for updating and gathering comment information in real time. The method includes 1), transmitting information to a trigger system by a user; 2), determining to grab the information by the trigger system according to the information transmitted by the user, and transmitting a grabbing instruction; 3), parsing a page of a target website by a webpage grabbing system according to the grabbing instruction of the trigger system, acquiring specified information and transmitting the acquired information to a result page generating system; 4), gathering the grabbed information by the result page generating system and generating a regular page; and 5), displaying the generated regular page to the user browsing a webpage. By the aid of the method, experiences of the user can be improved, the user can know comment information of various websites in time, and a storage space of a server is saved and is estimated to be about 0.2% of an existing storage space.

The invention relates to a method and a device for sharing a cloud card. The method and the device are applied to a cloud data sharing server. The method comprises the following steps: monitoring whether first cloud card information of a first user is received, wherein the first cloud card information includes mood information of the first user; and sending the first cloud card information to a terminal of a second user when the first cloud card information is received, wherein the terminal of the second user is used to display the first cloud card information of the first user to the second user when communicating with a terminal of the first user. By adopting the technical scheme, mood information of users can be shared automatically, the operation of users is simplified, and the user experience is enhanced.

The invention discloses a parking charging method based a visitor. The parking charging method based the visitor comprises steps that step 1, when a vehicle arrives at an entrance of a parking lot, the vehicle information is recorded, whether the vehicle is a visitor vehicle is determined, and a visitor application is initiated; step 2, after the visitor application is received by a proprietor, whether the visitor vehicle is added to a visitor parking stall list is determined; step 3, according to the determination result of whether the visitor vehicle is added to the visitor parking stall list of the step 2, whether charging is carried out is determined, the vehicle passes, and the parking start time of the vehicle is recorded; step 4, the vehicle is going out of the parking lot, the parking time is generated according to the parking start time of the step 3, whether a payment order is generated is determined according to the determination result of the step 3; and step 5, order payment is carried out according to the result of the step 4, and the vehicle goes out of the parking lot. The method is advantaged in that once the proprietor has an idle parking stall, the visitor vehicle can be temporarily parked at the idle parking stall of the visited proprietor, payment is not required, the utilization rate of the idle parking stall is enhanced, the vehicle enters the parking lotthrough intelligent identification, whole-course automatic operation is realized, manual charging is not needed, and the method is convenient and rapid.

The invention relates to a display cabinet control method and device and a display cabinet, and the display cabinet control method comprises the steps: collecting the commodity information on a shelf in the display cabinet; judging whether the display cabinet needs replenishment or not according to the commodity information on the shelf; and when replenishment is needed, sending a replenishment prompt to an administrator. The commodity information on the shelves in the display cabinet is collected, whether the display cabinet needs to be replenished or not is judged according to the commodity information on the shelves, and replenishment information is fed back to the administrator in time, so that the administrator of a supermarket can replenish commodities in time; and according to the method, a popular commodity ranking list can be determined according to commodity sales conditions, popular recommendations of commodities are provided for consumers through the touch display screen, and the consumers are helped to make decisions. According to the invention, the labor cost is reduced, when stockout occurs, merchants can know the stockout in time, timely replenishment is facilitated, the user experience of consumers is improved, and the income of merchants is also improved.

The invention relates to the technical field of unmanned aerial vehicles, and particularly discloses a medicine spraying device for an unmanned aerial vehicle. The medicine spraying device comprises an unmanned aerial vehicle body and a second connection block, a first connection block is fixedly connected in the middle of the bottom of the unmanned aerial vehicle body, the bottom of the second connection block is fixedly connected with a medicine storage box, a motor is fixedly connected inside the second connection block, an output end of the motor is fixedly connected with a stirring rod, amain stirring piece is fixedly connected on each of left and right sides of the stirring rod, a medicine injection port is fixedly communicated at a position, close to the top, of the left side of the medicine storage box, a first valve is fixedly connected at a position, close to the top, of the surface of the medicine injection port, a water injection port is fixedly communicated at a position,close to the top, of the right side of the medicine storage box, and a second valve is fixedly connected at a position, close to the top, of the surface of the water injection port. By arranging themotor and matching with the stirring rod and the stirring pieces, the medicine spraying device can directly stir and blend medicine liquid, working difficulty of working personnel is lowered, and working efficiency is improved.

The embodiment of the invention provides a web end online code intelligent repair method. The method comprises the following steps of obtaining an online code error message; locating an error positionof the error code according to the error message; performing script analysis on the error code to determine an error type; and automatically repairing the error code according to the determined errortype. The embodiment of the invention further provides a web end online code intelligent repair device, computer equipment and a computer readable storage medium. According to the embodiment of the invention, the monitoring of online codes can be enhanced, the online exception can be known in time, the problem of online page white screen or page loading exception can be solved, and the user experience is enhanced.

The invention discloses a method for realizing illegal safety supervision of oil unloading operation of a gas station based on AI identification. The method comprises the steps of S1 collecting a video image of an oil unloading region of the gas station through a monitoring system, obtaining real-time video stream data, and transmitting the real-time video stream data to an algorithm platform subsystem; S2 performing algorithm analysis and AI identification on the acquired real-time video stream data by using the algorithm platform subsystem to obtain an oil unloading region identification result, and storing the oil unloading region identification result in a data storage module; S3 judging whether the oil unloading region identification result is illegal operation or not through the algorithm platform subsystem; if not, returning to S1; if so, triggering early warning , broadcasting early warning information in real time, and meanwhile pushing the early warning information to a client; and S4 enabling field staff or management staff to deal with the violation operation in time.

The present invention relates to the device maintenance and detection technology field, especially to a wall-mounted gas boiler cloud maintenance and detection system. The system comprises a hardware terminal, a cloud center and a user terminal; the hardware terminal comprises an inductor set, a parameter input module, a cloud connection module and a help module; the cloud center comprises a data collection unit, an operation unit and an early warning unit; and the user terminal comprises a display unit, a maintenance prompting unit and a help module. Wall-mounted gas boiler repairing and maintenance data is calculated according to a plurality of parameters such as the brand of wall-mounted gas boiler, a space area where the wall-mounted gas boiler is located, the power of the wall-mounted gas boiler, the service life of the wall-mounted gas boiler, the water supply quality, combustion gas quality and the manufacturer equipment quality of the wall-mounted gas boiler so as to give a maintenance scheme with excellent pertinency for users, avoid the unreasonable conditions of excessive maintenance and lacking of maintenance, prolong the service life of the wall-mounted gas boiler and improve the usage reliability and safety.

The invention relates to a queuing management system of a medical examination compartment body. The compartment body is formed by assembling a big board square cabin; the big board adopts a square pipe section as a framework; the compartment body comprises a main compartment body and an extension compartment body capable of laterally extending and retracting relative to the main compartment body; the queuing management system of the compartment body comprises a control system, a client terminal, a website system and a communication conversion module for connecting the control system with the client terminal; the control system comprises a control module, a waiting time prediction module and a secondary queuing module; the control system arranges the obtained client data according to a certain order and then transmits the data to the client terminal through the communication conversion module, the website system receives data formed by the control system secondarily arranging the client feedback information to call number. In the queuing management system of the medical examination compartment body, the physical examination space is effectively expanded through the retractable compartment body so as to realize indoor waiting; and meanwhile, an examinee can timely and rapidly know the self queuing status by means of the queuing management system so as to reasonably arrange time, thereby the efficiency of physical examination is improved.