CN104333753B - The color monitoring device of optical projection system and system - Google Patents
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Abstract
本发明提供一种投影系统的色彩监控设备和系统，其色彩监控设备包括光接入装置、聚光装置以及感光器件，所述光接入装置上开有多个光接口，所述聚光装置设置在所述光接入装置与所述感光器件之间；各所述光接口分别连接投影系统的一个光机，用于接入对应光机的采集光，其中，所述采集光用于进行对应光机的色彩检测；所述聚光装置用于将各所述光接口接入的采集光汇聚到所述感光器件上进行成像，其中，在所述感光器件上成像得到的图像数据用于对各所述光机的输出光的色彩进行监测，解决了因为光机自带传感器的差异性以及各自环境的差异性而导致的测量差异性，减少对各个光机的色彩的检测值的准确性的影响。
The present invention provides a color monitoring device and system for a projection system. The color monitoring device includes an optical access device, a light concentrating device, and a photosensitive device. The optical access device is provided with a plurality of optical interfaces. The light concentrating device It is arranged between the optical access device and the photosensitive device; each of the optical interfaces is respectively connected to an optical machine of the projection system, and is used to access the collected light of the corresponding optical machine, wherein the collected light is used to perform Corresponding to the color detection of the optical machine; the light concentrating device is used to converge the collected light connected by each of the optical interfaces to the photosensitive device for imaging, wherein the image data obtained by imaging on the photosensitive device is used for Monitor the color of the output light of each of the optical machines, solve the measurement differences caused by the differences in the sensors of the optical machines and the differences in their respective environments, and reduce the accuracy of the color detection values of each optical machine sexual influence.
Description
技术领域technical field
本发明涉及光电技术领域，特别是涉及一种投影系统的色彩监控设备和系统。The invention relates to the field of photoelectric technology, in particular to a color monitoring device and system of a projection system.
背景技术Background technique
在拼接墙显示系统中测量投影系统的色彩(主要是测量投影系统的各光机的输出光的亮色度)的反馈设备是不可或缺的一个组成部分。它能否精确地检测到光机工作状态下的色彩的变化，直接影响整墙是否能调到亮色度一致。因此，色彩监控对整墙的显示效果有着至关重要的作用。目前投影系统对于色亮度采集主要有：光传感器(light sensor，光传感器只能检测亮度)、颜色传感器(color sensor，颜色传感器可以检测色度和亮度)或者光谱仪(精确测量光谱的分布)。这些设备通常都安装在光机上对光进行实时检测，然后根据测量的数据对光机的电流进行反馈调节，控制拼接墙的亮色度一致。这种方式有如下几个缺点：In the video wall display system, the feedback device for measuring the color of the projection system (mainly measuring the brightness and chromaticity of the output light of each light machine of the projection system) is an indispensable part. Whether it can accurately detect the color change under the working state of the light machine directly affects whether the whole wall can be adjusted to the same brightness and chromaticity. Therefore, color monitoring plays a vital role in the display effect of the entire wall. At present, the projection system mainly includes color brightness acquisition: light sensor (light sensor, light sensor can only detect brightness), color sensor (color sensor, color sensor can detect chromaticity and brightness) or spectrometer (accurately measure the distribution of spectrum). These devices are usually installed on the optical machine to detect the light in real time, and then adjust the current of the optical machine according to the measured data to control the brightness and chromaticity of the splicing wall to be consistent. This approach has the following disadvantages:
1)每个传感器(sensor，将以上的光传感器、颜色传感器以及光谱仪统称为传感器)参数特性自身会有一定的差异性；1) The parameter characteristics of each sensor (sensor, the above light sensor, color sensor and spectrometer are collectively referred to as sensors) will have certain differences;
2)由于每台光机配一个传感器，所以工作时各个传感器所处在的环境不同(温度和湿度等会影响传感器的检测精确性)；2) Since each optical machine is equipped with a sensor, the environment of each sensor is different when working (temperature and humidity will affect the detection accuracy of the sensor);
3)由于传感器的离散性，工作一段时间后，传感器之间的老化程度也会有差异，每个传感器与初始状态下相比，检测光亮色度的也会不同；3) Due to the discreteness of the sensor, after working for a period of time, the aging degree of the sensors will also be different, and each sensor will detect light and chromaticity differently compared with the initial state;
综合以上几点，由于光机自带传感器的差异性以及各自所处环境的差异性，将导致测量的差异性，最终会影响各个光机的对色彩的检测值的准确性，不利于色彩的长期维持一致。Based on the above points, due to the differences in the sensors of the optical machines and the differences in their respective environments, the differences in measurement will eventually affect the accuracy of the color detection values of each optical machine, which is not conducive to color accuracy. Be consistent for a long time.
发明内容Contents of the invention
本发明的一个目的在于提供一种投影系统的色彩监控设备，可以减少对各个光机的色彩的检测值的准确性的影响。An object of the present invention is to provide a color monitoring device for a projection system, which can reduce the impact on the accuracy of the color detection values of each optical machine.
本发明的这一目的通过如下技术方案实现：This purpose of the present invention is achieved through the following technical solutions:
一种投影系统的色彩监控设备，包括光接入装置、聚光装置以及感光器件，所述光接入装置上开有多个光接口，所述聚光装置设置在所述光接入装置与所述感光器件之间；A color monitoring device for a projection system, comprising an optical access device, a light concentrating device, and a photosensitive device, the optical access device is provided with a plurality of optical interfaces, and the light concentrating device is arranged between the optical access device and the photosensitive device. between the photosensitive devices;
各所述光接口分别连接投影系统的一个光机，用于接入对应光机的采集光，其中，所述采集光用于进行对应光机的色彩检测；Each of the optical interfaces is respectively connected to an optical machine of the projection system for accessing the collected light of the corresponding optical machine, wherein the collected light is used for color detection of the corresponding optical machine;
所述聚光装置用于将各所述光接口接入的采集光汇聚到所述感光器件上进行成像，其中，在所述感光器件上成像得到的图像数据用于对各所述光机的输出光的色彩进行监测。The light concentrating device is used for converging the light collected by each of the optical interfaces onto the photosensitive device for imaging, wherein the image data obtained by imaging on the photosensitive device is used to control the light of each of the optical machines The color of the output light is monitored.
采用本发明的色彩监控设备，由于包括一光接入装置，该光接入装置上开有多个光接口，各光接口分别连接投影系统的一个光机，用于接入对应的光机的用于进行色彩检测的采集光，且由于还包括聚光装置以及感光器件，聚光装置用于将各所述光接口接入的采集光汇聚到感光器件上进行成像，也就是说可以将多个光机的采集光都接入到同一设备上，从而解决了因为光机自带传感器的差异性以及各自环境的差异性而导致的测量差异性，减少了对各个光机的色彩的检测值的准确性的影响。Adopting the color monitoring device of the present invention, since it includes an optical access device, there are multiple optical interfaces on the optical access device, and each optical interface is respectively connected to an optical machine of the projection system, and is used to access the corresponding optical machine. It is used to collect light for color detection, and since it also includes a light concentrating device and a photosensitive device, the light concentrating device is used to converge the collected light connected by each optical interface to the photosensitive device for imaging, that is to say, multiple The collected light of each optical machine is connected to the same device, thus solving the measurement differences caused by the differences in the sensors of the optical machines and the differences in their respective environments, and reducing the detection value of the color of each optical machine influence on the accuracy.
本发明的另一个目的在于提供一种投影系统的色彩监控设备，可以减少对各个光机的色彩的检测值的准确性的影响。Another object of the present invention is to provide a color monitoring device for a projection system, which can reduce the impact on the accuracy of the color detection values of each optical machine.
本发明的这一目的通过如下技术方案实现：This purpose of the present invention is achieved through the following technical solutions:
一种投影系统的色彩监控系统，包括如上所述的投影系统的色彩监控设备，还包括控制PC；A color monitoring system for a projection system, including the above-mentioned color monitoring device for the projection system, and also includes a control PC;
所述投影系统的色彩监控设备用于根据所述图像数据分别检测各所述光机的采集光的色彩参数值，当检测到任意一个或者多个光机的色彩参数值不在预设的色彩参数范围内，则将相应的图像数据传输给所述控制PC，所述控制PC用于根据接收到图像数据进行对应光机的输出光的色彩调整。The color monitoring device of the projection system is used to respectively detect the color parameter values of the light collected by each of the light machines according to the image data, and when it is detected that the color parameter values of any one or more light machines are not within the preset color parameters Within the range, the corresponding image data is transmitted to the control PC, and the control PC is used to adjust the color of the output light of the corresponding optical machine according to the received image data.
本发明的色彩监控系统由于包括如上所述的投影系统的色彩监控设备，也解决了因为光机自带传感器的差异性以及各自环境的差异性而导致的测量差异性，减少了对各个光机的色彩的检测值的准确性的影响。Because the color monitoring system of the present invention includes the color monitoring equipment of the above-mentioned projection system, it also solves the measurement differences caused by the differences in the sensors of the optical machines and the differences in their respective environments, reducing the need for each optical machine. The influence of the accuracy of the color detection value.
附图说明Description of drawings
图1为本发明的投影系统的色彩监控设备的结构示意图；FIG. 1 is a schematic structural diagram of a color monitoring device of a projection system of the present invention;
图2为本发明的投影系统的色彩监控系统的结构示意图。FIG. 2 is a structural schematic diagram of the color monitoring system of the projection system of the present invention.
具体实施方式detailed description
为使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步的详细说明。应当理解，此处所描述的具体实施方式仅仅用以解释本发明，并不限定本发明的保护范围。In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.
在下述说明中，首先针对本发明的投影系统的色彩监控设备的实施例进行说明，再对本发明的投影系统的色彩监控系统的各实施例进行说明。In the following description, the embodiment of the color monitoring device of the projection system of the present invention will be described first, and then the embodiments of the color monitoring system of the projection system of the present invention will be described.
参见图1所示，为本发明的投影系统的色彩监控设备的结构示意图。如图1所示，本实施例中的投影系统的色彩监控设备包括光接入装置11、聚光装置12以及感光器件13，光接入装置11上开有多个光接口14，聚光装置12设置在光接入装置11与感光器件13之间；Referring to FIG. 1 , it is a schematic structural diagram of the color monitoring device of the projection system of the present invention. As shown in Figure 1, the color monitoring equipment of the projection system in this embodiment includes an optical access device 11, a light concentrating device 12 and a photosensitive device 13, and a plurality of optical interfaces 14 are opened on the optical access device 11, and the light concentrating device 12 is arranged between the optical access device 11 and the photosensitive device 13;
多个光接口14分别连接投影系统的一个光机，用于接入对应光机的采集光，其中，所述采集光用于进行对应光机的色彩检测；A plurality of optical interfaces 14 are respectively connected to an optical machine of the projection system for accessing the collected light of the corresponding optical machine, wherein the collected light is used for color detection of the corresponding optical machine;
聚光装置12用于将各所述光接口接入的采集光汇聚到感光器件13上进行成像，其中，在感光器件13上成像得到的图像数据用于对各所述光机的输出光的色彩进行监测。The light concentrating device 12 is used for converging the collected light connected by each of the optical interfaces to the photosensitive device 13 for imaging, wherein the image data obtained by imaging on the photosensitive device 13 is used to control the output light of each of the optical machines Color is monitored.
在具体工作时，在色彩监控设备投入使用后，投影系统的各个光机可以分别连接一个光接口14，不同的光机连接的光接口14也不相同，这样，可以将色彩监控设备的各个光机的采集光都引用到该色彩监控设备这一个设备上，各光机的采集光经聚光装置12聚光后在感光器件13上成像，也就是说，将光接入装置11接入的大面积的采集光成像到小面积的感光器件13上，采用这种方式，可以更加真实和全面反馈各光源变化情况。采用本发明的色彩监控设备，可以解决因为光机自带传感器的差异性以及各自环境的差异性而导致的测量差异性，减少对各个光机的色彩的检测值的准确性的影响。In specific work, after the color monitoring equipment is put into use, each optical machine of the projection system can be connected to an optical interface 14 respectively, and the optical interfaces 14 connected to different optical machines are also different. The collected light of each optical machine is referred to the color monitoring equipment, and the collected light of each optical machine is condensed by the light collecting device 12 and then imaged on the photosensitive device 13, that is to say, the light connected to the optical access device 11 The large-area collected light is imaged onto the small-area photosensitive device 13. In this way, the changes of each light source can be fed back more realistically and comprehensively. The color monitoring device of the present invention can solve the measurement differences caused by the differences in the sensors of the optical machines and the differences in their respective environments, and reduce the impact on the accuracy of the color detection values of each optical machine.
其中，上述的光接口14可以均匀的分布在光接入装置11，例如成阵列分布，但并不限于均匀分布的方式。Wherein, the above-mentioned optical interfaces 14 may be uniformly distributed in the optical access device 11 , for example, distributed in an array, but not limited to a uniform distribution manner.
考虑到由于在进行色彩监控时，对色差、畸变等要求不高，上述的聚光装置12可以采用成本较低的透镜，可以是一个透镜，可以是一组透镜，或者称为透镜组；为了能使各光机的采集光在感光器件13所成的像大小合理，一般要求聚光装置12的位置可调，主要是指沿聚光装置12的轴向方向可调，或者称为聚光装置12与感光器件13之间的垂直距离可调，其中，采集光是对应的光机的一小部分输出光的，采集光所占输出光的比例可以根据实际需要设定，例如，1％，即将1％的输出光作为采集光。Considering that the requirements for chromatic aberration, distortion, etc. are not high when performing color monitoring, the above-mentioned concentrating device 12 can adopt a lens with a lower cost, which can be a lens, a group of lenses, or a lens group; To make the size of the image formed by the light collected by each optical machine on the photosensitive device 13 reasonable, the position of the light concentrating device 12 is generally required to be adjustable, mainly refers to the adjustable along the axial direction of the light concentrating device 12, or called light concentrating The vertical distance between the device 12 and the photosensitive device 13 is adjustable, wherein the collected light is a small part of the output light of the corresponding optical machine, and the ratio of the collected light to the output light can be set according to actual needs, for example, 1% , that is, 1% of the output light is used as the collected light.
上述的感光器件13一般应为面感光器件，且感光器件13的横截面积小于聚光装置12的横截面积。The photosensitive device 13 mentioned above should generally be a surface photosensitive device, and the cross-sectional area of the photosensitive device 13 is smaller than that of the light concentrating device 12 .
此外，为了将各所述光机的采集光接入到光接入装置11，在其中一个实施例中，本发明的投影系统的色彩监控设备，还可以包括多根导光器件，各所述导光器件分别连接一个光接口14，分别用于将对应光机的所述采集光导人到对应的光接口，其中，所述导光器件一般选用光纤。In addition, in order to connect the collected light of each of the optical machines to the optical access device 11, in one embodiment, the color monitoring device of the projection system of the present invention may also include a plurality of light guide devices, each of the The light-guiding devices are respectively connected to an optical interface 14, and are respectively used to guide the collected light of the corresponding optical machine to the corresponding optical interface, wherein the light-guiding devices generally use optical fibers.
另外，为了在光机的光路中获取采集光，在其中一个实施例中，本发明的投影系统的色彩监控设备，还可以包括分别设置在各所述光机的反光镜后端的聚光镜头，各所述聚光镜头的后端连接有一个所述导光器件，且在所述反光镜后端与所述聚光镜头之间打有光通孔，对光机光路做这种改变，即将采获取采集光的地方选择在微镜(DMD)器件(对于液晶投影，Lcos投影等一样适用)之前,有利于采集光的准确性，能更加准确地反馈光机输出光的变化情况。In addition, in order to obtain collected light in the optical path of the optical machine, in one embodiment, the color monitoring device of the projection system of the present invention may also include condenser lenses respectively arranged at the rear ends of the reflectors of each optical machine, each The rear end of the condensing lens is connected with a light guide device, and a light through hole is formed between the rear end of the reflector and the condensing lens, so that the light path of the light machine is changed, and the acquisition and acquisition The place of light is selected before the micromirror (DMD) device (applicable to liquid crystal projection, Lcos projection, etc.), which is conducive to the accuracy of light collection and can more accurately feedback the change of light output by the light machine.
根据上述本发明的投影系统的色彩监控设备，本发明还提供一种投影系统的色彩监控系统，参见图2所示，为本发明的投影系统的色彩监控系统的结构示意图。According to the color monitoring device of the projection system of the present invention, the present invention also provides a color monitoring system of the projection system, as shown in FIG. 2 , which is a schematic structural diagram of the color monitoring system of the projection system of the present invention.
如图2所示，本实施例的投影系统的色彩监控系统，包括如上任意一个实施例中所述的投影系统的色彩监控设备21，还包括控制PC(Personal Computer，个人电脑)22；As shown in Figure 2, the color monitoring system of the projection system of this embodiment includes the color monitoring device 21 of the projection system described in any one of the above embodiments, and also includes a control PC (Personal Computer, personal computer) 22;
投影系统的色彩监控设备21用于根据所述图像数据分别检测各所述光机的采集光的色彩参数值，当检测到任意一个或者多个光机的色彩参数值不在预设的色彩参数范围内，则将相应的图像数据传输给控制PC 22，所述控制PC 22用于根据接收到图像数据进行对应光机的输出光的色彩调整。The color monitoring device 21 of the projection system is used to respectively detect the color parameter values of the light collected by each of the optical machines according to the image data, when it is detected that the color parameter values of any one or more optical machines are not within the preset color parameter range Then, the corresponding image data is transmitted to the control PC 22, and the control PC 22 is used to adjust the color of the output light of the corresponding optical machine according to the received image data.
其中，色彩参数值包括亮度值和色度值等，色彩参数范围可以根据实际需要设定。Wherein, the color parameter value includes a brightness value and a chroma value, etc., and the range of the color parameter can be set according to actual needs.
本实施例投影系统的色彩监控系统由于包括如上所述的投影系统的色彩监控设备，也解决了因为光机自带传感器的差异性以及各自环境的差异性而导致的测量差异性，减少对各个光机的色彩的检测值的准确性的影响。Since the color monitoring system of the projection system in this embodiment includes the color monitoring equipment of the projection system as described above, it also solves the measurement differences caused by the differences in the sensors of the optical machine and the differences in the respective environments, reducing the need for each The influence of the accuracy of the color detection value of the light machine.
在其中一个实施例中，投影系统的色彩监控设备21还可以用于在控制PC 22进行对应光机的输出光的色彩调整，将对应光机的图像数据传输给控制PC 22，控制PC 22可以根据在其进行对应光机的输出光的色彩调整时接收到的图像数据判断是否调整完成条件，若是，则结束对应光机的输出光的色彩调整，若继续根据当前接收到图像数据进行对应光机的输出光的色彩调整，这样形成了一个闭环控制，直到整墙的色彩一致为止。In one of the embodiments, the color monitoring device 21 of the projection system can also be used to adjust the color of the output light of the corresponding light machine on the control PC 22, and transmit the image data corresponding to the light machine to the control PC 22, and the control PC 22 can According to the image data received when the color adjustment of the output light corresponding to the optical machine is performed, it is judged whether the adjustment is completed, and if so, the color adjustment of the output light corresponding to the optical machine is ended. The color adjustment of the output light of the machine, thus forming a closed-loop control until the color of the whole wall is consistent.
其中，调整完成条件可以与色彩参数范围相一致，例如，根据在进行对应光机的输出光的色彩调整时接收到的图像数据得到的相应光机的采集光的色彩参数值若在预设的色彩参数范围内，即可以判定为满足调整完成条件。Wherein, the adjustment completion condition may be consistent with the color parameter range, for example, if the color parameter value of the collected light of the corresponding optical machine obtained according to the image data received during the color adjustment of the output light of the corresponding optical machine is within the preset If the color parameter is within the range, it can be judged that the adjustment completion condition is met.
考虑到光机正常工作中光源的衰减是很慢的，前后两次进行色彩检测的时间间隔可以根据实际需要设置为较长的时间，为此，在其中一个实施例中，投影系统的色彩监控设备21前后两次进行色彩检测的时间间隔可调，调整方式可以手动调节；或者/和投影系统的色彩监控设备21在前后两次检测所述色彩参数值的时间间隔处于待机状态，有利于投影系统的色彩监控设备21的长时间工作。Considering that the attenuation of the light source is very slow in the normal operation of the optical machine, the time interval between the two color detections can be set to a longer time according to actual needs. For this reason, in one of the embodiments, the color monitoring of the projection system The time interval between two times of color detection by the device 21 is adjustable, and the adjustment method can be adjusted manually; or/and the color monitoring device 21 of the projection system is in a standby state during the time interval between two detections of the color parameter value before and after, which is conducive to projection The color monitoring device 21 of the system works for a long time.
此外，考虑到投影系统的色彩监控设备21需要将图像数据传输给控制PC22，为了避免设备异常而无法正常传送数据，在其中一个实施例中，投影系统的色彩监控设备21还可以用于检测与控制PC 22之间的通讯是否异常，或者还用于检测与各光机的之间的连接是否异常，若是，则进行告警。In addition, considering that the color monitoring device 21 of the projection system needs to transmit image data to the control PC 22, in order to avoid equipment abnormality and cannot transmit data normally, in one embodiment, the color monitoring device 21 of the projection system can also be used to detect and Whether the communication between the control PCs 22 is abnormal, or it is also used to detect whether the connection with each optical machine is abnormal, and if so, an alarm is issued.
其中，检测通讯是否异常可以有多种，例如，可以设置控制PC 22在接收到图像数据时返回给投影系统的色彩监控设备21一设定信号，则可以通过检测是否接收到该设定信号的方式检测通讯是否异常。Wherein, there can be multiple ways to detect whether the communication is abnormal. For example, the control PC 22 can be set to return a setting signal to the color monitoring device 21 of the projection system when receiving the image data, and then it can be detected by detecting whether the setting signal is received. The method detects whether the communication is abnormal.
其中，检测连接是否出现异常的方式可以是：在所述感光器件上成像得到的图像数据是否包括已连接的所有光机的采集光所对应的图像的数据，连接异常的原因可能是对应的导光器件故障，直接更换对应的导光器件即可，而无需关机、拆结构件等，这相对于光机自带传感器的方式，可维护性强，当因为光机自带传感器下如果需要更改传感器则需要光机断电，以及拆除外壳等结构件进行重新安装传感器。Among them, the way of detecting whether the connection is abnormal may be: whether the image data obtained by imaging on the photosensitive device includes the image data corresponding to the collected light of all connected optical machines, and the reason for the abnormal connection may be that the corresponding guide If the optical device is faulty, you can directly replace the corresponding light guide device without shutting down or dismantling the structural parts. The sensor needs to be powered off optically and mechanically, and the structural parts such as the shell are removed to reinstall the sensor.
进行告警的方式可以根据实际需要选定，例如，设置告警灯，当检测到异常时，点亮该告警灯，或者也可以采用发出提示音的方式进行告警。The way of giving an alarm can be selected according to actual needs, for example, setting a warning light, and when an abnormality is detected, the warning light will be turned on, or a warning tone can also be used for warning.
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.
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