104 results about "Safety specification" patented technology

The invention discloses a method and a device for charging a battery. The method comprises the following steps: when a battery module is charged with constant current or constant voltage, detecting the temperature of each buttery cell in the battery module; when the temperature of any one of the battery cells is over a threshold, reducing the charging current, wherein the threshold is not higher than the critical temperature requiring charging voltage reduction prescriptive in a safety specification; and after a period of time, judging whether the temperature of the buttery has a downtrend, if the temperature of the battery has a downtrend, maintaining the charging current, and if the temperature of the battery has no downtrend, reducing the charging current continuously. According to the steps, the battery can be charged under the condition of taking account of security consideration and no loss of battery capacity.

The invention discloses a novel electric energy metering system substation comprising a metering device, transformer substation monitoring active and standby servers (transformer substation monitoring system background), a forward isolation device and an electric energy metering retransmission workstation, wherein the forward isolation device divides the system electric energy metering system substation into two zones with different security levels, i.e. a security I zone (real-time control zone) and a security II zone (non-control production zone); the transformer substation monitoring active and standby servers belong to the system security I zone and are used for directly collecting and processing original electric energy metering data; an intelligent electric energy meter is accessed into the unit by an optical fiber, and the unit retransmits the synchronous electric energy metering data of the workstation by the forward isolation device; the electric energy retransmission workstation is arranged in the outside screen of the isolation device and belongs to the security II zone; the unit can store and retransmit electric energy metering data and transmits electric energy metering data obtained from the monitoring background to a metering master station by the IEC870-5-102 covenant. As a novel electric energy metering system substation, the invention realizes the integration design of transformer substation monitoring and electric energy metering, simplifies redundant configuration, makes data security level clear, conforms to the safety specification of an electric power system and conforms to the development tendency of a digital transformer substation.

The invention discloses a safe distance calculation method for the electrified operation of a transformer substation. The method comprises the following steps of carrying out data acquisition by utilizing a laser radar point cloud, and subjecting point cloud data to classification treatment, wherein during the data classification, the point cloud data are subjected to the intelligent analysis andcalculation or the manual calculation of electrified wires, ground equipment facilities and electrified operation safety distances. According to the calculation method of the invention, electrified wires and equipment safe operation distances are comprehensively detected, so that the working safety of the personnel during the construction process in the transformer substation is ensured. The operation risk is reduced, and the requirements of the construction safety specification in the transformer substation are met. The above safe distance calculation method for the electrified operation of the transformer substation is different from existing universal point cloud segmentation algorithms, wherein the characteristics of the transformer substation are fully considered. The method is aimingat target features, such as the features of wires, equipment and the like in the transformer substation, and serves as a special treatment method for the surface features of the transformer substation.

A computer input apparatus is disclosed which has improved safety control. Computer input devices with coherent light sources are popular. However, coherent light sources may cause serious and unrecoverable injuries to human eyes. Accordingly, there are several safety specifications defined by manufacturers and governments. Therefore, an improved device is disclosed that includes a calibration circuit and a fault detection circuit to control the operation current of a coherent light source to be within the safety specifications range, and to monitor for fault conditions. Furthermore, a computer input apparatus with coherent light source can be operated without the traditional optical lens.

Methods and apparatus provide for a primary side circuit including one or more voltage nodes; and a monitoring circuit operating to monitor one or more parameters of the primary side circuit, and including at least one sensing circuit and at least one processing circuit within a secondary side circuit, where the sensing circuit includes a resistor network having an input for receiving a first sensed voltage from a first of the voltage nodes of the primary side circuit, traversing an isolation boundary between the primary side circuit and the secondary side circuit while adhering to a safety specification, which includes a primary-secondary isolation requirement, and having an output for providing a first modified sensed voltage to the processing circuit.

This invention provides a wireless earphone able to control a ringing signal in response to an incoming call. This invention particularly provides a wireless earphone enabling the volume of the ringing signal relied on the status of the wireless earphone. The wireless earphone depends on an ear-hook action of the earphone or a sensor detecting the ear-hook action to determine the status of the earphone to control the volume of the ringing signal. As such, when the wireless earphone is not in use, i.e. being not worn, the volume of the ringing signal is enlarged to make the user perceives an incoming call. When the wireless earphone is in use, i.e. being worn, the volume of the ringing signal is in a range meeting a safety specification. The hearing of the user thus can be protected.

The invention discloses a capacitor energy discharging circuit capable of reducing power loss and a power supply circuit thereof. The power supply circuit is connected with an AC (Alternating Current) power supply and a load, wherein the AC power supply outputs an AC voltage, the power supply circuit at least comprises a power supply input end, a filter unit, a main circuit and a capacitor energydischarging circuit, wherein the power supply input end is used for receiving the AC voltage; the filter unit is connected with the power supply input end and is used for filtering the noise of the AC voltage; the main circuit is connected with the filter unit and the load and is used for converting the filtered AC voltage into an output DC (Direct Current) voltage and sending to the load; and the capacitor energy discharging circuit is connected with the power supply input end, the filter unit and a common junction and is used for detecting whether the power supply input end receives the AC voltage or not and releasing electric energy stored in the filter unit when the detection result is negative. The capacitor energy discharging circuit provided by the invention not only accords with the standard formulated by the safety specification, but also can reduce power loss and further develop towards the direction of saving energy, reducing loss and improving the efficiency.

A barcode scanner having a laser alignment indication mainly has an alignment light source module and a reading light source module. After the alignment light source module is aligned with a barcode, the reading light source module is started to read barcode information. After irradiating the alignment light source module on a luminance parameter adjusting barcode set, a user can further adjust light source intensity of the alignment light source module, thereby solving a defect that an existing laser indication barcode scanner is incapable of adjusting luminance of the laser indication light. Moreover, the laser light source in the present invention uses Class I lasers meeting safety specifications, so that the present invention meets user requirements and is safe.

The invention discloses a transformer substation operation field monitoring device based on deep learning. The transformer substation operation field monitoring method comprises enabling a field monitoring person and an operation person to enter a transformer substation operation field monitoring program; selecting and confirming the first operation step by the field monitoring personnel, and executing the monitoring work; enabling the camera to collect a field operation video file and convert the field operation video file into an RGB image; loading improved deep neural network YOLO-V3; inputting an image, automatically identifying the equipment and the identifier, and judging whether an operation behavior conforms to a safety specification or not; according to the recognition and judgment result, giving an alarm on site, and giving an evaluation result; visually displaying the identification and evaluation results to on-site monitoring personnel in real time; and enabling the field monitoring personnel to confirm the evaluation result and select to enter the next step or end the operation. Two deep neural network lightweight methods of model structure pruning and weight quantification are used, high-precision real-time inference of the deep neural network model in the embedded intelligent terminal is realized, and safety and efficiency are improved.

The invention provides a photovoltaic inverter leakage current detection method based on an exponentially weighted moving average forecasting method. The change degree of leakage current is quantified as the integral of the leakage current and the action time thereof, and by the exponentially weighted moving average forecasting method, dynamic protection on the leakage current is realized. Simulation and experiment results show that the method has effective protection on dynamic leakage current change, meeting the requirements of safety specifications, and the method can be applied to the field of dynamic protection with a time step characteristic.

The invention discloses an automatic generating method of a lift shaft drawing. The automatic generating method is characterized in that that a past lift product configuration information database is established, after plane parameters of a shaft to be drawn are input and the rated loading capacity is selected, listed lift car specifications conforming to the Lift Manufacturing And Installation Safety Specification are selected, meanwhile, configuration information related to the selected lift car specifications is extracted from the lift product configuration information database, after vertical-face parameters of the shaft are input and the rated speed is selected, the lift shaft drawing is automatically generated through drawing software, and automation and standardization of lift shaft drawing are realized. The invention further discloses another automatic generating method of a lift shaft drawing. According to the method, new lift car specifications are configured in a non-standard designing module through goal constraints, a lift car configuration scheme conforming to the Lift Manufacturing And Installation Safety Specification is obtained, therefore, automation of lift shaft drawing is realized, and meanwhile, design of the new lift car configuration scheme is completed.

The invention provides a broadband antenna. The broadband antenna is applied to a wireless communication device, and comprises a substrate, a grounding assembly, a first radiator, a second radiator, a third radiator and a signal feed-in assembly, wherein the grounding assembly is used for providing grounding; the first radiator comprises a first sector and a second sector, the first sector is connected with the second sector and approximately vertical to the second sector, the first sector is electrically connected with the grounding assembly, and the second sector extends along a direction; the second radiator is coupled with the first radiator; both ends of the third radiator are respectively and electrically connected with the second radiator and the grounding assembly; the signal feed-in assembly is electrically connected with the third radiator for transmitting or receiving RF signals; and the first radiator, the second radiator and the third radiator are arranged in a manner that the first radiator, the second radiator and the third radiator are sequentially formed on the substrate along the direction in the order of the first sector of the first radiator, the second radiator and the third radiator. The broadband antenna can increase the antenna bandwidth, improve the radiation efficiency and reduce the antenna size, can conform to specifications of a safety specification SAR at all operating frequency bands, and can be suitable for wireless communication systems of various kinds of different frequency bands.

The invention discloses an intelligent charging pile beside a residential quarter road. The intelligent charging pile comprises a charging pile support and the road. The charging pile support is fixedly installed on the side of the road. Supporting rods are fixedly installed at the upper end of the charging pile support. A ceiling is fixedly installed at the upper ends of the supporting rods. By means of cooperation of two dimensional codes and strong electricity relay control panels, single-chip microcomputer control panels, charging control panels and GPRS / 3G communication modules, intelligentization, automatic management, unattended operation and all-weather operation of the charging pile are achieved, wherein each charging device is internally provided with one strong electricity relay control panel, one single-chip microcomputer control panel, one charging control panel and one GPRS / 3G communication module; payment is conducted through wechat, fund is safe, a client is notified immediately after each payment, and the client can automatically apply for drawback; intelligent modules can monitor storage batteries, automatic power off is carried out after charging, the user is notified in real time, and fire risks are eliminated; current detection is used, each port supports one time of charging, storage batteries not conforming to safety specification are refused to be charged, connection with merchants is conducted quickly through wechat, and nearby charging pile seeking, charging reminding, special offers and more are acquired.

The invention relates to a safety behavior simulation training system. The safety behavior simulation training system is characterized in that in the system, a network collaborative technology, a multiprotocol model (DVR) technology and a broadWareX three-dimensional element processing platform technology are fused with a WebSuperFetch engine, model elements in a model element library are processed, power industry characteristics and power operation rules are fused into model object properties and applied to environment generation rules, the simple model elements which are mutually independent are integrated, object characteristics are integrated into, and then operable virtual operation fields and real objects are gradually generated; a virtual environment of power operation training is created, safety specifications of the power industry are explained through a three-dimensional animation modeling technology, and simulation training of power facilities and power operation maintenance flow paths is provided. Power workers can obtain related operation points, needed knowledge, and knowledge of inspection and application of related tools by completing all the tasks, can firmly grasp knowledge points corresponding to the tasks, and familiarize themselves with operation specifications and safety precautions of all majors, and therefore accidents are reduced to the maximum degree in the daily work.

The invention discloses an energy collecting and voltage stabilizing power supply circuit based on taking electricity by using high-voltage power wires. The energy collecting and voltage stabilizing power supply circuit comprises an electricity taking coil, a voltage pump module, an energy storage module, a voltage sampling unit, a reference voltage module, a hysteresis comparison module, an electronic switch and a regulator module. The electricity taking coil is sleeved on a high-voltage cable, the output end of the electricity taking coil is connected with the voltage pump module, the voltage pump module is connected with the input end of the energy storage module, and the output end of the energy storage module is connected with the voltage sampling unit, the reference voltage module, the hysteresis comparison module, the electronic switch and the regulator module respectively; and the regulator is connected with a load. The energy collecting and voltage stabilizing power supply circuit has the advantages of simple structure, simple method reliability, little volume and light weight and can meet the safety specification of high-voltage wires.

The invention relates to a system and method for integrating tire pressure monitoring and remote key-free entering, which are applied to a vehicle and a key remote controller for the vehicle. The key remote controller for the vehicle emits a signal with a predetermined carrier frequency. When the vehicle is in a locking state, an integrated controller in the vehicle detects an unlocking signal from the key remote controller for the vehicle, transmits a tire information requiring signal to a tire pressure sensing module if confirming an identity authentication code of the unlocking signal from the key remote controller for the vehicle. The tire pressure sensing module sends a tire information signal at least including tire pressure data within a predetermined time limit, and transmits the tire information signal at the predetermined carrier frequency. Therefore, the advantages of hardware sharing and accordance with safety specification are achieved.

The invention discloses an energy storage container comprising a box body, a storage rack disposed in the box body and an energy storage battery placed on the storage rack. Two sides of the box body are provided with double-door bodies for facilitating the installation and debugging of the energy storage battery. The double-door bodies are arranged on two sides of the energy storage container, sothat the double-door bodies are opened in battery installation, debugging or daily maintenance, an operator can perform various operations at the outside of the box body without entering a charged area in the box body, the operation is convenient, doors on two sides of the box body meets the requirements of the safety specification UL9540 and international safety specifications, personal injury and other possible safety accidents can be avoided, and the safety is high. In addition, since the operator can complete various operations outside the box body, a walkway in the box body is not needed,the capacity of the energy storage battery in the box body can be increased, and the space utilization of the box body is improved.

The invention relates to an automatic service composition method capable of guaranteeing correction and a system thereof. The automatic service composition method comprises steps of acquiring safety specification, active specification and message map, converting the message map into computer logic formula specification, acquiring business processing executive language file, converting the business processing executive language file into automaton model file, constructing maximum composition service meeting the computer logic formula specification converted from the safety specification, the active specification and the message map through preplanned operation, and finally outputting maximum composition service. Without acquiring verified composition service specification previously, maximum composition service meeting property of correction can be constructed from given service only needing providing the correction property meeting the composition service specification, thereby reducing development time and consumption of composition service and increasing development efficiency and correction of composition service.

The invention provides a hybrid-cloud-based centimeter-level real-time positioning system and an implementing method thereof, characterized in that 1, grid points of a virtual reference station are calculated on a public cloud of a provider; 2, data of the virtual reference station are pushed to a private cloud of a user as required; 3, a terminal of the user is connected to the private cloud of the user; 4, after authorization and authentication are passed, the terminal transmits its own probability position to the private cloud of the user; 5, a broadcasting system on the private cloud of the user broadcasts a differential correction of a grid of the corresponding virtual reference station according to the probability position uploaded by the terminal. The public cloud and the private cloud are hybridized and matched; the personal solution saves calculation resources and meets the enterprise user safety specification.

The present invention relates to a 3-tier client / server safety specification automatic testing system. Said invention utilizes the topological concept of 3-tier structure to integrate the system composition components including full-automatic test working machine group, server and client terminal operation platform into a 3-tier client / server full-automatic safety specification testing system. By utilizing a testing task data base built in the server the operator can utilize the interaction of client terminal operation platform and server to test defined file, test result, access task products and make operation so as to can implement safety specification automatic measuremento f electronic product.

The invention proposes an air guide ring structure, an embedded air conditioner indoor unit and an air conditioner. The embedded air conditioner indoor unit comprises a water receiving disc structure; the air guide ring structure is matched with the water receiving disc structure for installation; the air guide ring structure comprises an air guide ring body and a wire passing box structure, wherein the wire passing box structure is arranged on the air guide ring body, and is a half-closed structure; the opening side of the wire passing box is towards one side of the water receiving disc; and a power supply wire body penetrates through between the internal of the wire passing box structure and the water receiving disc. In the air guide ring structure for the embedded air conditioner indoor unit, as the wire passing box structure is arranged on the matched side of the air guide ring body with the water receiving disc, and is set as the half-closed structure, the wire arrangement structure of the wire body in the air guide ring is simplified, the fixed mounting difficulty of the wire body is reduced, and the production efficiency is promoted; and the power supply wire body is hidden in the wire passing box through the wire passing box structure, and is prevented from exposing outside, so that the industry safety specification requirements are satisfied, and the appearance of the air guide ring structure is tidy and beautiful.

The invention discloses a non-contact type bridge structure performance and safety rapid test and evaluation system and method. The non-contact type bridge structure performance and safety rapid test and evaluation method comprises the steps of: enabling a transmitting beam of a microwave vibration measurement system to cover a to-be-tested bridge structure, controlling the repeated transmission of a linear frequency modulation continuous wave microwave signal, and collecting a multi-channel intermediate frequency baseband signal; then carrying out combined positioning of the distance and angle dimensions of whole-field measurement points of the tested bridge structure according to the multi-channel intermediate-frequency baseband signal, and extracting to obtain the deformation and vibration time domain information of the multiple measurement points; verifying whether a bridge structure meets design and safety specification requirements or not according to multi-measuring-point deformation information of the tested bridge structure under the static load or dynamic load test working condition, and identifying modal parameters according to deformation and vibration information of full-field measuring points of the tested bridge structure under excitation; and according to the deformation quantity and the modal parameters, carrying out rapid test and evaluation on the performance and safety of the tested bridge structure. The non-contact type bridge structure performance and safety rapid test and evaluation system and the method are used for carrying out distance and angle combined dimension positioning and measurement on the bridge structure, and realize rapid testing and evaluation of structural performance and safety.

The invention relates to a method for recording the maintenance process of a substation based on wearable equipment, which comprises the following steps: (1) a maintenance task work order and a work ticket are received; (2) operation tools, operation tablet computers and operation glasses are assigned to the overhaul operation through the intelligent substation management platform; (3) the intelligent substation management platform pushes the maintenance work ticket to the operation terminal; (4) Overhaul personnel carries out overhaul operations; 5) the maintenance responsible person recordsthe work ticket and synchronously uploads the work ticket to the application serv; 6) during that operation, the positioning server receives the positioning information of the personnel and calculateswhether the personnel crosses the line or not; (7) The operation glasses is prompted to use and record the inspection and repair operation instruction card and relevant safety specifications; (8) Fordangerous points, the tablet computer compulsorily records the picture and text information; (9) the homework is Finished. The invention realizes the recording of the work order, the recording of pictures and texts of the key processes, and the prompting and recording of the violation behaviors, so as to facilitate the real-time synchronization and the post-statistical analysis.

The invention relates to an intelligent design system and method for blasting excavation construction. The system comprises a human-machine interface, an inference engine and a knowledge base, wherein the human-machine interface is used for carting out human-machine conversation between a user and the system; the knowledge base comprises an expert experience knowledge base, a typical case knowledge base and a blasting rule knowledge base. Due to the establishment of the knowledge base and the inference engine, intelligent design of the blasting excavation construction is realized. The knowledge base covers expert experiences, typical cases, blasting rules and other knowledge, so that the knowledge quantity is large, the coverage is wide, and the pertinence is strong; the actual application of on-site engineering can be met. The inference engine can realize inference based on the expert experiences, the typical cases and the blasting rules. All the inference schemes are used for blasting safety specification inspection for inference based on the blasting rules. The user can compare the schemes obtained according to different inference modes and select one of the schemes, or correct local parameters of the schemes through an inference result accessing interface, to finally obtain the optimal blasting design scheme.

The invention relates to a flexible lifting gate, which comprises a gate body part, wherein the gate body part comprises connection fabrics, a bottom cross beam and a middle horizontal frame; the connection fabrics are connected with the bottom cross beam and the middle horizontal frame; and a safety door is arranged on the bottom cross beam. The flexible lifting gate is also provided with a safety door state display system, so that personnel can come in and go out conveniently, and the flexible lifting gate also can be used as an escape way when necessary. The whole gate has no need to be lifted up and down when personnel come in and go out, so that the complexity in operation is reduced, the electric energy is saved, the safety is increased, and the requirement of building safety specification is met.

The invention discloses a light emitting diode (LED) bulb lamp. The LED bulb lamp comprises a bulb type lens (1), an LED (3), a heat-conducting aluminum substrate (4), a radiating seat (6), a driving circuit board (8), a radiating lamp housing (11), a connecting piece (12), a lamp cap (13), an insulating fixed seat (7) and a driver insulating shell (10), wherein the heat-conducting aluminum substrate (4) is arranged on the upper surface of the radiating seat (6); the radiating seat (6) is connected with the radiating lamp housing (11); the radiating lamp housing (11) is provided with a plurality of radiating fins; ventilation grooves are formed between every two radiating fins; the lower surface of the radiating seat (6) is also provided with a plurality of radiating fins; ventilation trenches are formed between every two radiating fins on the lower surface of the radiating seat, and are communicated with the ventilation grooves, so that heat is radiated through convection; the radiating area is expanded by using the plurality of radiating fins on the lower surface of the radiating seat and the air is conducted by using the ventilation trenches between the radiating fins, so that the heat is radiated through air convection, and the LED lamp has a good radiating effect; the driver insulating shell (10) is matched in the radiating lamp housing (11); and the insulating fixed seat (7) is connected with the driver insulating shell (10) in a mutual matching way to accommodate the driving circuit board (8) in the space between the insulating fixed seat (7) and the driver insulating shell (10). Thus, the LED lamp can achieve the IP44 water-proof grade and meet the requirement of a CLASS II safety specification.

The invention discloses a 180-degree axial element and a processing method thereof. The 180-degree axial element comprises a first lead, a second lead, a fixing assembly and a chip, wherein the fixing assembly is used for fixing one end of the first lead and one end of the second lead; the chip is arranged between the horizontal crossing positions of the first lead and the second lead; and bending hooks are arranged at the tail ends of the horizontal crossing positions of the first lead and the second lead. According to the 180-degree axial element, the angle between the two leads is 180 degrees; the 180-degree axial element conforms to the safety specification and is free of Be content requirement; the bending hooks are arranged at one end of the first lead and one end of the second lead; and the leads at the positions of the bending hooks are flattened, so that the contact area of each lead and the welding surface is increased; the tension after welding is reinforced; the tension of the welded product is greater than 1.0kg; U-shaped bending parts are formed at the other ends of the first lead and the second lead; and semicircle leads of the U-shaped bending parts extend outside an adhesive tape, so that rear-end testing operation is facilitated.