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申请号:201911277884.4 公开号:CN111179168A 主分类号:G06T3/40
摘要:【中文】本发明提供一种车载360度全景环视监控系统及方法。该系统图像处理模块对所述多个广角摄像头在同一时刻采集的图像进行图像俯视变换得到相应的俯视图像作为待拼接图像后,基于图像特征的图像缝合算法对所述待拼接图像进行拼接配准,并采用图像融合算法消除拼接缝、使产生的图像重合区域能够与整体图像融为一体,消除拼接缝。此外,本发明提供的技术方案还根据拼接后图像的亮度分量直方图信息调整图像色彩,减少不同待拼接图像亮度间的差别。 【EN】The invention provides a vehicle-mounted 360-degree panoramic all-around monitoring system and a method. The system comprises an image processing module, an image stitching algorithm, a splicing seam elimination module and a whole image fusion module, wherein the image processing module is used for carrying out image overlook transformation on images acquired by a plurality of wide-angle cameras at the same time to obtain corresponding overlook images serving as images to be spliced, the images to be spliced are spliced and registered based on the image stitching algorithm of image characteristics, and the splicing seam is eliminated by adopting the image fusion algorithm to eliminate the splicing seam, so that the generated image overlapping area can be fused with the whole image into a whole. In addition, the technical scheme provided by the invention also adjusts the image color according to the brightness component histogram information of the spliced image, and reduces the difference between the brightness of different images to be spliced.
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申请号:201911415111.8 公开号:CN111225342A 主分类号:H04W4/029
摘要:【中文】本发明提供了一种通过无线电向设备发送数据的方法、系统及介质,包括:发布单元获取广播号,以无线电方式发送所述广播号至无线电传输范围内的接收单元;索引服务单元根据接收到的来自接收单元的所述广播号返回对应的内容号;内容服务单元接收来自接收单元的所述内容号。本发明无需获取用户(接收单元)的位置,通过无线电发送广播号,用户可根据自己的意愿选择是否进行连接,有效保护了用户的隐私。本发明通过内容服务单元可以对接收到的内容进行过滤,减少垃圾、非法等内容对用户的骚扰。 【EN】The present invention provides a method, system and medium for transmitting data to a device by radio, comprising: the method comprises the following steps that a release unit obtains a broadcast number and sends the broadcast number to a receiving unit in a radio transmission range in a radio mode; the index service unit returns a corresponding content number according to the received broadcast number from the receiving unit; the content service unit receives the content number from the receiving unit. The invention does not need to acquire the position of the user (receiving unit), and the user can select whether to connect or not according to own will by transmitting the broadcast number by radio, thereby effectively protecting the privacy of the user. The invention can filter the received content through the content service unit, and reduce the harassment of the content such as rubbish, illegal content and the like to the user.
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申请号:202010060574.3 公开号:CN111220299A 主分类号:G01K13/00
摘要:【中文】本发明公开了一种温度检测方法、装置及空调机组,其中,该方法包括:控制第一温度传感器检测目标区域的温度;根据目标区域的温度确定目标物体的位置和目标物体的第一温度;根据目标物体的位置控制第二温度传感器检测目标物体的第二温度;根据第一温度和第二温度确定目标物体的精确温度。本发明解决了现有技术中温度检测器难以实现一定区域内人体温度的准确检测的问题,提高了人体温度检测的准确性。 【EN】The invention discloses a temperature detection method, a temperature detection device and an air conditioning unit, wherein the method comprises the following steps: controlling a first temperature sensor to detect the temperature of a target area; determining the position of the target object and a first temperature of the target object according to the temperature of the target area; controlling a second temperature sensor to detect a second temperature of the target object according to the position of the target object; an accurate temperature of the target object is determined based on the first temperature and the second temperature. The invention solves the problem that the temperature detector in the prior art is difficult to realize accurate detection of the human body temperature in a certain area, and improves the accuracy of human body temperature detection.
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申请号:201911421949.8 公开号:CN111194010A 主分类号:H04W4/06
摘要:【中文】本发明提供了一种通过无线电向目标数量设备发送数据的方法、系统及介质,包括:发布单元从规划服务单元获取广播指令,根据要求的无线电发射功率发送广播号至无线电传输范围内的接收单元;索引服务单元根据来自接收单元的第一访问操作,返回给接收单元对应的内容号,并向规划服务单元发送第一访问通知;内容服务单元根据来自接收单元的第二访问操作,返回给接收单元对应的内容,并向规划服务单元发送第二访问通知;规划服务单元根据第一访问通知和/或第二访问通知调整广播指令。本发明通过内容服务单元可以对接收到的内容进行过滤,减少垃圾、非法等内容的骚扰,通过规划服务单元可精确控制精确控制推送数据的触达数量,减少对无线电资源的占用。 【EN】The invention provides a method, a system and a medium for transmitting data to a target number of devices by radio, comprising the following steps: the issuing unit acquires a broadcast instruction from the planning service unit and sends a broadcast number to a receiving unit in a radio transmission range according to the required radio transmitting power; the index service unit returns the content number corresponding to the receiving unit according to the first access operation from the receiving unit and sends a first access notification to the planning service unit; the content service unit returns the content corresponding to the receiving unit according to the second access operation from the receiving unit and sends a second access notification to the planning service unit; the planning service unit adjusts the broadcast instructions according to the first access notification and/or the second access notification. The invention can filter the received content through the content service unit, reduce the disturbance of the contents such as rubbish, illegal and the like, can accurately control the touch quantity of the pushed data through the planning service unit, and reduce the occupation of radio resources.
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申请号:201911380839.1 公开号:CN111130488A 主分类号:H03H7/20
摘要:【中文】本发明公开了一种超宽带移相电路。该电路包括第一~第二开关管、第一~第四电容、第一~第二电感和磁耦合互感,其中磁耦合互感包括第一、第二螺旋电感;所述第一螺旋电感、第二螺旋电感的首端分别连接电路的输入端、输出端,第一、第二螺旋电感的首端之间顺次串联第一电感、第一开关管、第三电容、第二电感;所述第四电容串联在电路的输入、输出端口之间;第一、第二螺旋电感的末端相连;所述第一电容与第二开关管串联之后与第二电容并联;第一、第二电容的公共端接地,第二开关管与第二电容的公共端接入第一、第二螺旋电感的末端。本发明具有超宽带、电路拓扑结构简单的优点,并且工艺难度要求低、损耗小、移相精度高、控制方式简单、集成度高。 【EN】The invention discloses an ultra-wideband phase-shifting circuit. The circuit comprises first to second switching tubes, first to fourth capacitors, first to second inductors and magnetic coupling mutual inductance, wherein the magnetic coupling mutual inductance comprises first and second spiral inductors; the first ends of the first spiral inductor and the second spiral inductor are respectively connected with the input end and the output end of the circuit, and a first inductor, a first switch tube, a third capacitor and a second inductor are sequentially connected in series between the first ends of the first spiral inductor and the second spiral inductor; the fourth capacitor is connected in series between the input port and the output port of the circuit; the tail ends of the first spiral inductor and the second spiral inductor are connected; the first capacitor is connected with the second switch tube in series and then connected with the second capacitor in parallel; the common end of the first capacitor and the common end of the second capacitor are grounded, and the common end of the second switch tube and the common end of the second capacitor are connected to the tail ends of the first spiral inductor and the second spiral inductor. The invention has the advantages of ultra wide band and simple circuit topological structure, and has low process difficulty requirement, small loss, high phase-shifting precision, simple control mode and high integration level.
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申请号:201911383384.9 公开号:CN111082765A 主分类号:H03F3/45
摘要:【中文】本发明公开了一种超宽带两位移相器。该两位移相器包括有源巴伦、第一~第三差分放大器、开关矩阵、RC正交网络和单刀双掷开关,其中有源巴伦接收单端信号,将单端信号转换为双端信号,分别连接至第一差分放大器的两个输入端;第一差分放大器对接收到的两路信号进行波形整形和增益补偿,并通过开关矩阵选择不同的支路以实现180°的相移;双端信号经开关矩阵并通过级联RC正交网络产生正交信号,RC正交网络的后级分别级联第二、第三差分放大器;单刀双掷开关选择第二、第三差分放大器不同的支路,产生90°相移步进量,从而实现90°、180°、270°三种移相量。本发明具有超宽带、移相精度高、幅度平衡性好、控制方式简单、集成度高的优点。 【EN】The invention discloses an ultra-wideband two-bit phase shifter. The two-bit phase shifter comprises an active balun, a first differential amplifier, a second differential amplifier, a third differential amplifier, a switch matrix, an RC orthogonal network and a single-pole double-throw switch, wherein the active balun receives a single-ended signal, converts the single-ended signal into a double-ended signal, and is respectively connected to two input ends of the first differential amplifier; the first differential amplifier carries out waveform shaping and gain compensation on the two received signals, and selects different branches through a switch matrix to realize 180-degree phase shift; the double-end signal passes through the switch matrix and generates an orthogonal signal through a cascade RC orthogonal network, and the rear stage of the RC orthogonal network is respectively cascaded with a second differential amplifier and a third differential amplifier; the single-pole double-throw switch selects different branches of the second differential amplifier and the third differential amplifier to generate 90-degree phase shift stepping quantity, so that three phase shift quantities of 90 degrees, 180 degrees and 270 degrees are realized. The invention has the advantages of ultra wide band, high phase-shifting precision, good amplitude balance, simple control mode and high integration level.
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申请号:201911017611.6 公开号:CN110850359A 主分类号:G01S3/14
摘要:【中文】本发明公开了一种基于原子范数的互质阵欠定测向方法,本发明先接收端天线按照互质阵列进行架构;根据阵列接收信号进行建模;计算虚拟阵列输出信号;初始化内插输出信号;设计基于原子范数的优化方法恢复内插输出信号;重建内插后虚拟均匀线性阵列信号协方差矩阵;根据重建协方差矩阵进行波达方向估计。本发明通过内插将互质阵的不连续虚拟线阵插值到虚拟均匀性阵,充分了利用了互质阵的自由度和阵元信息;在向量化协方差矩阵得到虚拟阵列输出信号时,对同一位置的信号进行了平均,从而比直接选取同一位置的第一个信号更能充分利用信号的信息;可以避免传统稀疏表示方法的基不匹配问题,并且在优化问题时,引入了去噪操作,提高了测向的准确性。 【EN】The invention discloses a mutual-prime array underdetermined direction-finding method based on atomic norm, firstly, a receiving end antenna is constructed according to a mutual-prime array; modeling according to the array receiving signals; calculating a virtual array output signal; initializing an interpolated output signal; an optimization method based on atomic norm is designed to recover the interpolation output signal; reconstructing a virtual uniform linear array signal covariance matrix after interpolation; and estimating the direction of arrival according to the reconstructed covariance matrix. The invention interpolates the discontinuous virtual linear array of the co-prime array to the virtual uniform array by interpolation, thereby fully utilizing the degree of freedom and the array element information of the co-prime array; when the vectorization covariance matrix obtains the output signal of the virtual array, the signals at the same position are averaged, so that the information of the signals can be more fully utilized than the information of the signals directly selected from the first signal at the same position; the problem of base mismatching of the traditional sparse representation method can be avoided, and in the process of optimizing the problem, denoising operation is introduced, so that the direction finding accuracy is improved.
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申请号:201911226855.5 公开号:CN110862771A 主分类号:C09F1/02
摘要:【中文】一种少氯精制漂白紫胶的制备方法,先采用碳酸钠溶液溶解颗粒紫胶得到紫胶树脂碱溶解液;然后将紫胶树脂碱溶解液依次经过除渣、调温、调浓后进行中浓次氯酸钠漂白,得到半漂白浆料;再将半漂白浆料加入助剂调节半漂白浆料后用过氧化氢漂液进行中浓过氧化氢补充漂白,得到漂白紫胶树脂溶液;将漂白紫胶树脂溶液进行硅藻土吸附过滤后用质量浓度不高于6%的稀硫酸或稀盐酸进行酸化沉析处理,析出得到紫胶树脂;最后将析出的紫胶树脂用水洗涤至中性,再经离心脱水和破碎后干燥,冷却后即得到少氯精制漂白紫胶。本发明解决了紫胶传统漂白方法与其他绿色漂白方法相结合的的技术难题,制备的少氯精制漂白紫胶能满足水果保鲜剂甚至药物制备的要求,且环保经济。 【EN】A preparation method of refined bleached lac with less chlorine comprises dissolving granular lac with sodium carbonate solution to obtain lac resin alkali solution; then, sequentially removing slag, adjusting temperature and concentration of the lac resin alkali solution, and then bleaching with medium-concentration sodium hypochlorite to obtain semi-bleached pulp; adding an auxiliary agent into the half-bleached pulp to adjust the half-bleached pulp, and then performing medium-concentration hydrogen peroxide supplementary bleaching by using a hydrogen peroxide bleaching solution to obtain a bleached lac resin solution; carrying out diatomite adsorption filtration on the bleached lac resin solution, and then carrying out acidification precipitation treatment on the bleached lac resin solution by using dilute sulfuric acid or dilute hydrochloric acid with the mass concentration not higher than 6% to obtain lac resin; finally, the separated lac resin is washed to be neutral by water, and then is dried after centrifugal dehydration and crushing, and the low-chlorine refined bleached lac is obtained after cooling. The invention solves the technical problem of combining the traditional bleaching method of the lac with other green bleaching methods, and the prepared less-chlorine refined bleached lac can meet the requirements of fruit preservatives and even medicament preparation, and is environment-friendly and economical.
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申请号:201911380832.X 公开号:CN111010090A 主分类号:H03B19/14
摘要:【中文】本发明公开了一种宽带有源二倍频器。该二倍频器包括有源巴伦、PUSH‑PUSH二倍频单元和宽带放大电路;所述有源巴伦接收单端信号,将单端信号转换为双端差分信号输出,输出的两路信号分别连接至PUSH‑PUSH二倍频单元;所述PUSH‑PUSH二倍频单元产生的两路倍频信号从漏极输出,基波及奇次谐波信号反相抵消,同时二次谐波信号同相叠加;所述宽带放大电路,接收PUSH‑PUSH二倍频单元的输出信号,并通过三级宽带放大电路进行放大,完成倍频信号的功率输出。本发明工作带宽范围宽、基波及三次谐波抑制能力强,具有低功耗、输出功率高、电路面积小、工艺难度要求低的优点。 【EN】The invention discloses a broadband active frequency doubler. The frequency doubler comprises an active balun, a PUSH-PUSH frequency doubler unit and a broadband amplifying circuit; the active balun receives a single-ended signal, converts the single-ended signal into a double-ended differential signal and outputs the double-ended differential signal, and the two output signals are respectively connected to the PUSH-PUSH frequency doubling unit; two paths of frequency doubling signals generated by the PUSH-PUSH frequency doubling unit are output from a drain electrode, fundamental wave and odd harmonic signals are offset in opposite phases, and meanwhile, second harmonic signals are superposed in the same phase; the broadband amplifying circuit receives the output signal of the PUSH-PUSH frequency doubling unit and amplifies the output signal through the three-stage broadband amplifying circuit to finish the power output of the frequency doubling signal. The invention has the advantages of wide working bandwidth range, strong fundamental wave and third harmonic suppression capability, low power consumption, high output power, small circuit area and low process difficulty requirement.
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申请号:201911389382.0 公开号:CN111048930A 主分类号:H01R13/02
摘要:【中文】本发明提供了一种连接器用母端子,包括母端子本体,所述母端子本体具有用于与外部电路连接的外观面和用于与内部电路连接的内置面,所述母端子本体由镍基合金制备而成,所述镍基合金中镍含量≥30wt.%。采用镍含量≥30wt.%的镍基合金材质制备的连接器用母端子具有良好耐腐蚀性能,可以让连接器用母端子在不电镀外加涂层的情况下具有很强的耐腐蚀性,同时可延长该母端子的使用寿命,降低成本。 【EN】The invention provides a female terminal for a connector, which comprises a female terminal body, wherein the female terminal body is provided with an appearance surface used for being connected with an external circuit and an internal surface used for being connected with an internal circuit, and is prepared from a nickel-based alloy, and the content of nickel in the nickel-based alloy is more than or equal to 30 wt.%. The female terminal for the connector, which is prepared from the nickel-based alloy material with the nickel content of more than or equal to 30 wt.%, has good corrosion resistance, can have strong corrosion resistance under the condition of not electroplating an additional coating, and can prolong the service life of the female terminal and reduce the cost.
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