34results about How to "Long recording time" patented technology

A two-photon absorption decolorizable material comprising: a two-photon absorption dye executing a two-photon absorption; and a decolorizable dye having a molar absorption coefficient equal to or less than 100 at a wavelength of a light irradiated at the two-photon absorption, wherein the decolorizable dye is decolorized by an electron transfer or an energy transfer utilizing an excitation energy obtained by the two-photon absorption of the two-photon absorption dye.

The invention relates to a monitoring method of network audio and video and a net-hard-disk video recorder using the method. The method includes the steps: step one: a signal collection device is provided; step two: a multi-channel real-time monitoring data provided by a collection device of signals converted by a video and audio processing chip is provided; step three: the converted multi-channel monitoring data is transmitted to a DSP chip; step four: the DSP chip carries out respective H. 264 compression and coding of the received multi-channel monitoring data; step five: the remote transmission of the compressed and coded data is carried out through an Ethernet interface, a WiFi interface or an ADSL wan interface; step six: the compressed and coded data is locally stored; step seven: the compressed and coded data is locally played. The net-hard-disk video recorder comprises a DSP chip, video and audio processing chips which are respectively and electrically connected with the DSP chip, a net interface module and a function extension module. By adopting suitable video and audio processing chips and DSP chips, the invention simplifies hardware structures, reduces the cost and is high in stability and less in energy consumption. At the same time, the invention realizes the double implementation of local storage and remote transmission.

The embodiment of the invention discloses an embedded system log recording method and device. According to the method, a total number of files and an upper limit of a file size set by a user are received; generated log information is stored into a target file, and if the target file does not exist, the target file is established first; and when the memory size of the target file exceeds the upper limit, the target file is renamed, and a target file with the original file name is reestablished and used for recording newly generated log information. When the number of all established log files exceeds the total number, one log file not conforming to a preset condition is deleted, all the remaining log files and the target file are renamed according to preset naming rules, and a target file is created again. Logs are recorded in a rolling mode, that is, when the log recording size reaches the upper limit, newly recorded logs will cover oldest logs, and therefore the purposes of increasing the memory utilization rate and prolonging log recording time are achieved.

The invention relates to an integrated network hard disk video recorder, comprising a central control module, an audio/video processing module, a network support module, a plurality of functional expansion modules and a power control module, wherein, the central control module is a monolithic multimedia DSP processing chip which is internally provided with a double-speed memory, and is provided with a plurality of bus interfaces and functional expansion interfaces thereon, and is also provided with a display driving circuit. The display driving circuit is electrically connected with a touch screen display; a client can monitor multi-platform audio/video information through the touch screen display at the same time; the audio/video processing module, the network support module and the power control module are connected with the monolithic multimedia DSP processing chip through the bus interfaces or a network access technology; and the functional expansion modules are respectively connected with the monolithic multimedia DSP processing chip through the functional expansion interfaces corresponding to the functional expansion modules. The integrated network hard disk video recorder of the invention has simple hardware structure, high stability and low energy consumption, and lowers the cost, and the multi-platform monitoring at the same time can be realized by the client without an independent display drive.

The invention discloses a recording and storing device of multichannel CAN bus data. The recording and storing device of the multichannel CAN bus data includes an FPGA controller, a DSP controller, a multichannel bus receiving and transmitting circuit, an external plug connector, a data storage circuit and a power source circuit, wherein the FPGA controller is connected with the DSP controller, the multichannel bus receiving and transmitting circuit and the data storage circuit separately; the external plug connector is connected to the multichannel bus receiving and transmitting circuit and the power source circuit separately; the power source circuit is composed of a power source switching circuit, a power failure detection circuit and a capacitive energy storage circuit. According to the recording and storing device of the multichannel CAN bus data, when the storage device is powered off, the CAN bus data can be completely recorded and reliable outage can be achieved immediately to ensure the integrity of CAN bus data records and protect a memory chip at the same time, so that the recording and storing device has the advantages of being excellent in data recording reliability, large in storage capacity, long in recording time, capable of preventing data loss during full load running and the like.

The invention discloses an automotive antenna with a wireless and wired video recording function. The automotive antenna comprises an antenna body, an antenna base, a video/audio recording module, an image processing module, wired or wireless transmission equipment and a power source, the antenna body is arranged on the upper portion of the antenna base, and wired/wireless video/audio recording and transmitting equipment is mounted in the antenna base and has two modes including a wireless transmission mode which namely completes transmitting and receiving by automatically selecting 3G/4G/WLAN (third generation/fourth generation/WLAN (wireless local area network) networks, and the other model of transmitting/receiving data by wired transmission. In the technical scheme, the video recording and transmitting equipment is good in confidentiality and not easy to perceive and has functions of automatically selecting the 3G/4G/WLAN network and transmitting/receiving data, so that users can acquire automobile environment information in real time by mobile terminals such as cellphones.

The invention aims to provide a video compression method and device, and solves the technical problem that the existing video transmission bandwidth is excessively occupied by adopting an innovative video compression mode. The method comprises the following steps: 1, setting a dynamic background change predetermined value based on H.265, defining a scene of which the change is lower than the predetermined value as a background, and defining other scenes as foregrounds; 2, adopting H.265 to adopt high coding for the foreground, and adopting low coding for the background; 3, removing repeatedlyappearing I frames by adopting a multi-frame averaging algorithm, and filtering out redundant and repeated information for the P frames; 4, eliminating particle noise generated in the video by adopting a frequency division filter; and 5, calculating and comparing a previous frame and a following frame, and cutting a static frame scene to obtain a compressed video file. The video compression devicecomprises a scene definition module, a coding module, a data compression module, a data denoising module and a compressed video generation module. According to the invention, the size of the video file can be further compressed.

The invention discloses a device for monitoring and measuring the air permeability of soil. The device is composed of a closed system and a monitoring system, wherein the closed system is composed ofa stainless steel pipe, a soil column and a stainless steel pipe cap, and the monitoring system is formed by mutually connecting atmospheric pressure transmitters, a paperless recorder, a temperatureand humidity monitor, three-way plastic pipes, an injector, a wire and a power supply. According to the device, the changes of the air pressure, the temperature and the humidity of the soil column inthe closed stainless steel pipe are monitored, so that the air permeability of the soil and the water vapor throughput are calculated, and the technical support is provided for research of the air permeability of the soil, physical geography, mineral exploration, traditional geogas research in china and protection of cavern cultural relics.

The invention relates to a vehicle recording device, which belongs to automobile electron device technology field. The device includes: microchip, which is used to receive signal of GPS receiving board and A/D sampling signal; A/D converting chip for collecting car station analog signal; crystal oscillation, which is used to provide crystal oscillation signal; flash chip, which is used to store signal of GPS receiving board and sampled A/D signal; locking chip, which is used to lock data, realizes the duplex of address and data wires; series electric level conversion chip, which is sued to convert the series signal of the micro chip into electric level of computer series port. The recorder can record the car state signal, at the same time, it can record the track, time and speed and so on.

The invention relates to a vehicular video traveling recorder which carries out video recording to traveling states of vehicles. The vehicular video traveling recorder is characterized by mainly comprising a power supply module, an MCU control module, a video synthesis module, a main processing unit, a storage module and a display module, wherein the MCU control module, the video synthesis module, the storage module and the display module are connected with the main processing unit; the MCU control module is connected with the video synthesis module; and the power supply module provides the electricity for all electrical parts. The invention can record video and traveling data before and after a vehicle accident, effectively provides evidences for responsibility confirmation and accident settling in traffic accidents and can be widely applied in various vehicles.

The invention discloses a ground atmospheric pressure measuring device as well as use installation and interpretation methods of the ground atmospheric pressure measuring device. The ground atmospheric pressure measuring device is composed of atmospheric pressure transmitters, a paperless recorder, data transmission lines and a power source. All the atmospheric pressure transmitters except for one that is arranged on the surface of ground to monitor atmospheric pressure, are buried in aeration zone soil; the paperless recorder is connected with the atmospheric pressure transmitters respectively through the data transmission lines and is connected with the power source through the data transmission line. The ground atmospheric pressure measuring device of the invention can monitor the change of ground atmospheric pressure for a long time, and provides technical and equipment support for cultural relic protection, scientific research and exploration, production and the like.

The invention discloses an automotive brake lamp with a driving video recording function. The automotive brake lamp with a driving video recording function comprises a brake lamp mounting plate, brake lamp bulbs, a video/audio pickup module, an image processing module, transmission equipment and a power source, wherein the brake lamp bulbs are uniformly arranged on the brake lamp mounting plate, the video/audio pickup module is mounted on the brake lamp mounting plate, the image processing module is connected with the video/audio pickup module, the transmission equipment is connected with the image processing module, and the power source supplies power for the brake lamp bulbs, the video/audio pickup module, the image processing module and the transmission equipment. The video/audio pickup module and the transmission equipment are arranged in the brake lamp body, thus the brake lamp is creatively provided with a driving environment information recording and transmitting function and has performance that the outside can be observed from the inside and the inside cannot be observed from the outside as a result that built-in video equipment cannot be observed from the outside but is capable of observing the outside surrounding, and accordingly, is excellent in concealability and less prone to be found, and capable of effectively recording driving information.

The invention discloses a camera kit, which comprises a casing, wherein the casing and a camera are matched and are fixedly clamped. The camera kit is characterized in that the casing is provided with a plurality of thread holes or mounting holes which are connected with external equipment, the external equipment comprises a detachable handle, a universal arm assembly, an LED (light emitting diode) lamp and a microphone, the side edge of the casing is provided with a battery box which is used for placing a circuit board, and the interior of the battery box is provided with an external power source device which is used for charging the camera. The camera kit has the advantages that the camera is fixedly arranged in the camera kit, other camera accessories, such as additional recording accessories and light accessory equipment, are compatible, the problem of insufficient capacity of a battery is solved, and the shooting and recording time is long.

The invention discloses a drawing type cold chain temperature recording device and a temperature recording method thereof, and relates to a temperature recording device for a cold chain and a temperature recording method thereof. The method can be applied to temperature recording in the fields of food, medicine and the like which need to keep low-temperature production, storage and transportation. Comprising a base, a transparent cover, a spiral bimetallic strip, a central shaft, a shaft sleeve, a description pointer and a dial plate. An ink box is arranged in the cold chain low-temperature region of the dial plate; and a drawing head is arranged on the drawing pointer. A central shaft is fixed in the center of the base; the shaft sleeve is sleeved on the central shaft and can rotate; the outer end of the spiral bimetallic strip is connected with the inner wall of the base, the inner end of the spiral bimetallic strip is connected with a shaft sleeve, and the shaft sleeve penetrates through the dial plate. When the temperature changes, the spiral bimetallic strip stretches to drive the shaft sleeve to rotate; the shaft sleeve drives the drawing pointer to rotate. And the transparent cover covers the upper part of the base.

The invention relates to a high-resolution-image processing method which includes the following steps: 1). image data is acquired; 2). preprocessing is performed on received filtered image data by a preprocessing unit; 3) the preprocessing unit sends the converted image data to a main processor for coding processing; 4). the image data is output according to monitoring instruction of a ground monitoring station, if the monitoring instruction is sending, the main processor sends the coded image data to an aerial carrier through an HDLC channel and the aerial carrier transmits the image data to the ground monitoring station through a wireless channel; and if the monitoring instruction is saving, the main processor saves the coded image data into a large-capacity storage device. The high-resolution-image processing method solves a technical problem that prior digital aerial photographic cameras are large in data quantity so that storage is hard and transmission is inconvenient and has the characteristics of being low in code stream, great in instantaneity, high in fault-tolerant capability, supportive of lossy and lossless compression, and low in cost and great in universality at the same time.

The invention discloses a building wall surface paint thickness detection device. The building wall surface paint thickness detection device includes a device shell, a first laser transmitting receiver, a second laser transmitting receiver, a processing device, a power source device, a display device and a support, wherein the device shell is arranged on the support, the first laser transmitting receiver and the second laser transmitting receiver are located at the front end of the device shell and are connected with the processing device, the display device is located at the top of the device shell, the processing device and the power source device are located in the device shell and are electrically connected with each other, and the processing device transmits processing results to the display device. By means of the above manner, the building wall surface paint thickness detection device of the invention can record the paint thickness of a wall surface, so that whether construction personnel are cheating on workmanship and materials can be inferred. According to the detection device, it can be ensured that numerical values are accurate through obtaining average values. The building wall surface paint thickness detection device has the advantages of long recording time, high portability, convenient use and simple operation, and can assist in saving time of taskmasters, and is welcomed by consumers.

The invention relates to an intelligent high-speed ball track control method and a high-speed ball track control device. The high-speed ball track control method comprises the following steps that: actions and action time of a motor and a camera are recorded, and when two adjacent received orders are identical when a track is set, the action time is accumulated; and when two adjacent orders are different from each other, the recorded order is accumulated, and the order quantity is also accumulated. Compared with the prior art, the high-speed ball track control method and the device can guarantee the track recording accuracy and continuity, so the storage space of the record time can be saved, the orders of the track record can be increased, and the record time can be prolonged.

The invention discloses an intelligent door lock double-platform voice playing device. The device comprises a single-chip microcomputer and an ARM LINUX, the single-chip microcomputer and the ARM LINUX serve as a prompt sound recording and playing platform and a voice audio recording and playing platform of an intelligent door lock body respectively, and a playing platform of the single-chip microcomputer and an ARM LINUX playing platform do not interfere with each other when working. An implementation method comprises four steps. Double platforms of MCU + ARM LINUX are used for recording andplaying prompt sound and recording and prompt sounds are realized through an MCU playing platform. The recording time is long without affecting sound quality so that good experience is brought to a user. The performance of the intelligent door lock body is fully improved, and the market competitiveness of a product is improved. The defects that an existing intelligent door lock adopts a single-chip microcomputer to process prompt sound and record audio at the same time, the processing capacity is limited, the sound distortion degree is large, the user experience is poor, and recorded voice files are relatively small are overcome.

The invention discloses a button cell stacking device. A mounting groove has a depth sufficient to accommodate at least two stacked button cells. The side wall of the mounting groove is provided witha fixed support piece and an elastic support piece. The fixed support piece is fixed in the mounting groove. The elastic support piece can be overturned with respect to the side wall of the mounting groove. The elastic support piece and the fixed support piece support the button cells in cooperation. The elastic support piece is overturned and attached to the side wall of the mounting groove by anelastic reset piece. When button cells are required to be installed, the elastic support piece is overturned to a position perpendicular to the side wall of the mounting groove, and the elastic supporting piece can support the button cells. A stopping boss disposed on the side wall of the mounting groove, in cooperation with the elastic support piece, presses and stops the button cells from bothsides in order to fix the button cells. The button cell stacking device can accommodate the stacked button cells, utilizes the depth space of a fixing seat, does not occupy the lateral space of a PCB,does not affect the installation of other components, and prolongs the recording time of a RTC circuit of a device.

The invention relates to a solar car tailfin with a video recording function in driving. The solar car tailfin with the video recording function in driving comprises a car tailfin body, a light-emitting diode (LED) lamp, a video/audio shooting module, an image processing module, wired or wireless frequency modulation (FM) transmission equipment, data storage equipment, a liquid crystal display (LCD) screen, a solar panel and a high energy accumulator. The LED lamp is arranged on the car tailfin body, the video/audio shooting module is installed on the car tailfin body and can obtain a condition of surrounding environment behind the car, the image processing equipment is connected with the video/audio shooting module, the wired or wireless FM transmission equipment is connected with the image processing module, the solar panel is installed on the car tailfin body to obtain solar energy and convert the solar energy into electric energy to store in the high energy accumulator, and the high energy accumulator provides the electric energy for the LED lamp, the video/audio shooting module, the image processing module and the wired or wireless FM transmission equipment. The solar car tailfin has the functions of recording and transmitting environment information in backward driving. At the same time, the solar panel is adopted and the solar car tailfin has the advantages of being green and environment-friendly.

The invention relates to a seismic data partial superposition recording method and system, and the method is characterized in that the method comprises the following steps: 1), dividing a whole collection construction region, and obtaining at least one collection region; 2) selecting a certain acquisition area after division, and determining the recording time of seismic data acquisition in the acquisition area; 3) determining acquisition parameters of the acquisition area according to the recording time during acquisition of the seismic data in the acquisition area, the need of surface element division in seismic data processing and the length of a towing cable for acquiring the seismic data; 4) entering the step 2) to reselect a certain divided acquisition area until the acquisition parameters of all the acquisition areas are determined; and 5) according to the acquisition parameters of each acquisition area, performing seismic acquisition operation in the field to obtain seismic data of different acquisition areas, and processing and analyzing the acquired seismic data indoors to complete partial overlapping recording of the seismic data, and the method can be widely applied to the field of energy development and exploration.