User Manual for DALI models including: MD16U, Body Temperature Measurement Module, Human Body Temperature Measurement, Measurement Module
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DocumentDocumentUser Manual MD16U Human Body Temperature Measurement Module Rev. 1.0 Zhejiang DALI Technology Co.,Ltd. Zhejiang DALI Technology Co.,Ltd MD16U thermal imaging module user manual Outline 1. Product Introduction......................................................................................................................3 2. Technical Specifications..................................................................................................................5 3. Mechanical Parameters................................................................................................................... 7 4. Electrical Parameters.......................................................................................................................8 5. Software protocol............................................................................................................................ 8 6. UVC Output................................................................................................................................. 12 Appendix 1................................................................................................................................... 15 2 Zhejiang DALI Technology Co.,Ltd 1. Product Introduction MD16U thermal imaging module user manual The MD16U human body temperature measurement thermal imaging module is developed by DALI manufactured uncooled microbolometer detectors. MD16U outputs data with a resolution of 120×322 in UVC mode. The pseudo-color image and the temperature image are spliced up and down and output at the same time. The upper 120×160 is the pseudo-color image, the lower 120×160 is the temperature data, and the last 2 lines of information output other information. The module supplies power through the USB interface, communicates control and data output in UVC mode, and is easy to integrate with other application systems. MD16U module can be connected to a computer for independent application, and is also suitable for integration with other human body temperature measurement and screening equipment: temperature measurement flat panel, temperature measurement gate, temperature measurement security gate, temperature measurement attendance machine, temperature measurement access control intercom and other equipment. Picture .1MD16T Module appearance MD16U Features and Advantages Integrated mini black body, high temperature measurement accuracy, stable performance, and small influence of working environment temperature. Full-frame human body temperature measurement: Each frame of image provides 3 Zhejiang DALI Technology Co.,Ltd MD16U thermal imaging module user manual 160×120 temperature point data, suitable for various applications. UVC output to realize drive-free development Small size, convenient installation, universal single USB cable input and output Flexible application: users can perform personalized algorithm processing such as back-end image stretching and pseudo-color rendering. Precautions for module use: Use in strict accordance with the specified use conditions of the product, and the module needs to be used in an indoor no wind scene. When the system is used in integration, it is necessary to strengthen heat dissipation and ensure uniform and stable temperature around the module, and to be isolated from other cold/heat sources to avoid severe fluctuations in ambient temperature. Take care to protect the surface of the lens to avoid scratches and oil stains from hard objects. The module should not look directly at high temperature targets such as the sun to prevent high temperature burns to the detector. 4 Zhejiang DALI Technology Co.,Ltd 2. Technical Specifications MD16U thermal imaging module user manual The detailed technical parameters of MD16U is described as below Table 1Technical Parameters Detector Type Uncooled microbolometer array sensor Resolution 160×120 Pixel Pitch 17um Pixel Pitch 17um NETD 60mK (F/1,300K,60Hz) Frame Rate 12Hzimage and temp output at the same time 14Hzsingle image or temperature Single point, two point, dead point replacement, etc., dynamic Image Calibration dead point correction, automatic gain and false color (can be turned off) are completed before leaving the factory Output Interface UVC Control Interface UVC Temperature Range 3040 Temperaure Inbuilt black body, ± 0.3°C (ambient temperature Accuracy 20°C~30°C)/±0.5°C (ambient temperature 10°C~40°C) Temperature Measurement 0.5m Range Distance Calibration Support Human Body Temperature Support surface temperature / human body internal temperature Calibration Temperature Data 120×322Image and temperature stitching up and down Output 120×162(Gray value or temperature data) Working voltage DC 4.4V5.5V Power consumption 0.8W(room temperature steady state), peak 2.5W Working Temp 1040 Storage Temp -4060 Dimension 70mm×40mm×53mm Install port 2 M2 threaded holes on the bottom, 1 1/4'-20UNC threaded hole, 4 M2 threaded holes on the back Lens Athermalized fixed focus infrared lens Focus f3.85mm/F1.0 FOV 29.7°×38.9° PC Software Provide Windows version PC software, can view images, temperature measurement, etc. 5 Zhejiang DALI Technology Co.,Ltd MD16U thermal imaging module user manual SDK Provide SDK, including data receiving, sending, parsing, output mode switching, filtering algorithm switch, automatic gain switch, pseudo-color calling and distance correction interface 6 Zhejiang DALI Technology Co.,Ltd 3. Mechanical Parameters MD16U thermal imaging module user manual The dimensions of the module is shown in Picture 2(unitmm) Picture 2Module dimension 7 Zhejiang DALI Technology Co.,Ltd 4. Electrical Parameters MD16U thermal imaging module user manual The module output interface is a USB Type-A male data cable, which works in USB2.0 mode. Power requirements input range 4.4V ~ 5.5V, current greater than 500mA, more than 1A is recommended 5. Software protocol The module is a UVC slave device with a VC interface and a VS interface inside. The VC interface is used for module control, and the VS interface is used for image and temperature data output. Use the "contrast" adjustment command in the VC interface to issue control commands, upload module response information, and control the basic composition and format of transmission data packets as shown in Table 3. Table 3Packet format No. Definition Bytes Format 1 start byte 1 Fixed number0x6e 2 status code 1 0x00 3 reserved bit 1 0x00 4 script 1 As shown in Table 4 5 Data length (high 1 Indicates the length of number 9 data, see order) Table 4 "Data Length" column 6 Data length (low 1 order) 7 CRC1 (high order) 1 check code 8 CRC1 (low order) 1 9 data changeable Actual data, sent in little-endian mode, with variable length 10 CRC2 (high order) 11 CRC2 (low order) 1 check code 1 CRC1 check: CCITT-16 checksum is used, CRC-CCITT 0xFFFF that is CRC-16/CCITT-FALSE a) The check operation is performed on the four parts of "No. 1"-"No. 6". b) The check is formed at the backend and is checked at the module side. If 8 Zhejiang DALI Technology Co.,Ltd MD16U thermal imaging module user manual the check fails, it needs to be retransmitted. CRC2 check: CCITT-16 checksum is used, CRC-CCITT 0xFFFF that is CRC-16/CCITT-FALSE a) The check operation is performed on the six parts of "No. 1" "No. 9". b) The check is formed at the backend and is checked at the module side. If the check fails, it needs to be retransmitted. The table used for CRC1 and CRC2 check is shown in Appendix 1. Table 4Command Code 0x04 0x2a Dire ctio n Serial down Serial down Data 0x00:Turn on single-point calibration (manual calibration) Example6e 00 00 04 00 01 1d 4a 00 00 00 Auto Gain and Pseudo Color On Example6e 00 00 2a 00 02 b0 ee 02 00 66 62 Auto Gain and Pseudo Color Off Example6e 00 00 2a 00 02 b0 ee 02 01 76 43 Length 1 2 Description Manual single point calibration Automatic gain and pseudo-color switch Serial The module temperature measurement data 2 down enables the human body compensation mode Example6e 00 00 2a 00 02 b0 ee 0c 00 45 6d The module temperature measurement data closes the human body compensation mode Example6e 00 00 2a 00 02 b0 ee 0c 01 55 4C 0x84 Serial Parameter 12: The number of data packets of 2 down the upgrade file Example6e 00 00 84 00 02 16 73 05 00 ff f5 9 On/off state, it will take effect after the next shutter release, and it will be automatically saved in the module Notify the module to upgrade, and inform the number of data packages, Note 2 Zhejiang DALI Technology Co.,Ltd MD16U thermal imaging module user manual 0x88 0x8a 0xa4 Serial up Serial down Serial up Serial down Serial down Serial down Serial down Parameter 12: Request the packet number of 2 the next data packet, the packet number starts from 0 Example6e 00 00 84 00 02 16 73 00 00 00 00 Parameters 1 to 4: file length (sent in little 50 endian mode) Parameters 5 to 6: CRC of the entire file (sent in little endian mode) Parameter 718: The modification time of the file (year, month, day, hour, minute) Parameters 19~30: The version number of the file (included in the file name) Parameter 31~50: reserved parameter, default 00. Example6e 00 00 84 00 32 20 20 04 e7 00 00 dc 35 32 30 32 31 30 38 32 34 31 32 31 39 5a 32 30 30 30 38 32 34 31 32 31 39 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 40 1f Parameter 1~2: Request the packet number of 2 the next data packet, the packet number starts from 1 Example6e 00 00 84 00 02 16 73 01 00 33 31 Parameter 1~2: the package number of the current package, starting from 1 Parameter 3~4: effective data length Parameter 5: Valid data switch to grayscale image Example6e 00 00 88 00 01 53 71 00 00 00 00 switch to temperagture image Example6e 00 00 88 00 01 53 71 01 10 21 00 12800 1 0x00:Module reset restart 1 Example6e 00 00 8a 00 01 3d 11 00 00 00 Parameter 102 5 Parameter:25distance,Unit is centimeter, float type Example6e 00 00 a4 00 05 e0 52 02 00 00 a0 41 01 18 The module responds with 0x00 Firmware file length, verification, file modification time, version number and other information. The module responds to the packet number 0x01; the next step starts to send the data packet of the file. data pack switch to grayscale image and temperature image Module restart The example is 20.0cm, the float value is 41 a0 00 00, sent in little 10 Zhejiang DALI Technology Co.,Ltd MD16U thermal imaging module user manual endian mode Note 1 : The command packet is transmitted by using the "contrast" adjustment command of UVC. Only 2 bytes must be transmitted at a time. Therefore, when the length of the command packet (number of bytes) is not an even number, it needs to be filled with zeros at the end. Special attention should be paid to the high and low bits of the sending command. For example, the length (number of bytes) of the first 6e 00 00 04 00 01 1d 4a 00 00 00 is odd, and 0 should be added to 6e 00 00 04 00 01 1d 4a 00 00 00 00 , the module needs to receive the information in this order. If it is sent from a computer, the computer transmits the problem of size end, and the content that needs to be sent on the computer is as follows 0x6e 0x00; 0x00 0x04; 0x00 0x01; 0x1d 0x4a; 0x00 0x00; 0x00 0x00; Note 2; Firmware Upgrade Instructions The firmware data is sent to upgrade through UVC instruction, and 0x84 is used. The process is: A. Send the 0x84 downlink command for the first time, notify the module to enter the firmware upgrade state, and inform the firmware of the number of data packets (Byte), the module responds to the 0x84 command and returns 0x00, indicating that it is ready; B. Send the 0x84 downlink command for the second time to notify the module of the total length, check code, modification time and version number of the firmware file to be upgraded. The module responds with 0x01, indicating that the packet 11 Zhejiang DALI Technology Co.,Ltd MD16U thermal imaging module user manual number of the first data packet is requested, starting from 1; C. Next, divide the firmware size into multiple packages by 12796Byte each time, each package is accompanied by the package number and length of the current package, and send all firmware data in turn through the 0x84 command. Note that CRC2 needs to be calculated correctly, and the modulo Each time the group receives a 0x84 firmware data packet, it will return a 0x84 response command to notify the upper computer that the reception is completed and request the packet number of the next data packet. If there is no 0x84 response, the current packet needs to be resent. The last data packet may be less than 12800Byte in length, and it is sent according to the actual data length. 6. UVC Output The module is a UVC slave device, and the VS interface is used for data transmission. When outputting data, the format is YUYV, and the size of each pixel is 2Byte. The default state of the module is to output pseudo-color image and temperature image at the same time, and the output resolution is 120×322. Lines 1 to 160 are pseudo-color images, lines 161 to 320 are temperature data, and the last two lines are status information. The module can also be switched to output only pseudo-color image data, or only output temperature data, the output resolution is 120×162, the first row to the 160th row is pseudo-color image data, or temperature data, and the last two rows are status information. When acquiring data, the data is first read in the YUYV method, the pseudo-color image data is directly converted to RGB output, and the temperature data is converted to grayscale. The conversion relationship between the temperature measurement value Tc (°C) of the detection target and the grayscale value Vc (grayscale) of the temperature data is: Tc= Vc/10273; 12 Zhejiang DALI Technology Co.,Ltd MD16U thermal imaging module user manual In the output data, the last two lines are used to display the status information, and the information of each part is shown in Table 5. The information of the two lines of status bits, the starting position is at the position of 0 point of the last two lines, after outputting the data of the previous array, the next 12Byte is the detector type. That is, Table 5 is output in order from the 0-point position of the last two lines. Table 5: Information Format Name No(Byte) Remark Module Info Detector 12 ExampleDM1716A type 1st byte ~ 12th byte on line 321 Detector 12 ExampleP2235A number 12th byte~24th byte Firmware 12 Example C20210081556 version number 25th byte~36th byte bootloader 12 37th byte~48th byte version Module model 12 ExampleMD16U 49th byte~60th byte reserved 12 61th byte~72th byte Shutter grayscale 2 91th byte~92th byte TOUT gray value 2 93th byte~94th byte Center point information 12 Row coordinate (UINT16) starts at byte 105 column coordinates (UINT16) temperature (float) Grayscale (UINT32) Highest point information 12 Row coordinate (UINT16) starts at byte 117 column coordinates (UINT16) 13 Zhejiang DALI Technology Co.,Ltd MD16U thermal imaging module user manual temperature (float) Grayscale (UINT32) Lowest point information 12 Row coordinate (UINT16) starts at byte 129 column coordinates (UINT16) temperature (float) Grayscale (UINT32) any point information 12 Row coordinate (UINT16) starts at byte 141 column coordinates (UINT16) temperature (float) Grayscale (UINT32) Note 1: TOUT gray value, shutter gray value, center point information, highest point information and lowest point information are all in little-endian mode. Note 2: The conversion relationship between the internal temperature of the detector Ts (°C) and the module TOUT gray value Vs (gray) is: Ts = 190.64 - 0.02164 × Vs (The following page is Appendix 1) 14 Appendix 1 Item 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0a 0x0b 0x0c 0x0d 0x0e 0x0f 0x10 0x11 0x12 0x13 0x14 0x15 0x16 0x17 0x18 0x19 0x1a 0x1b 0x1c 0x1d 0x1e 0x1f 0x20 0x21 0x22 0x23 CRC value 0x0000 0x1021 0x2042 0x3063 0x4084 0x50a5 0x60c6 0x70e7 0x8108 0x9129 0xa14a 0xb16b 0xc18c 0xd1ad 0xe1ce 0xf1ef 0x1231 0x0210 0x3273 0x2252 0x52b5 0x4294 0x72f7 0x62d6 0x9339 0x8318 0xb37b 0xa35a 0xd3bd 0xc39c 0xf3ff 0xe3de 0x2462 0x3443 0x0420 0x1401 Item 0x40 0x41 0x42 0x43 0x44 0x45 0x46 0x47 0x48 0x49 0x4a 0x4b 0x4c 0x4d 0x4e 0x4f 0x50 0x51 0x52 0x53 0x54 0x55 0x56 0x57 0x58 0x59 0x5a 0x5b 0x5c 0x5d 0x5e 0x5f 0x60 0x61 0x62 0x63 CRC checklist CRC value 0x48c4 0x58e5 0x6886 0x78a7 0x0840 0x1861 0x2802 0x3823 0xc9cc 0xd9ed 0xe98e 0xf9af 0x8948 0x9969 0xa90a 0xb92b 0x5af5 0x4ad4 0x7ab7 0x6a96 0x1a71 0x0a50 0x3a33 0x2a12 0xdbfd 0xcbdc 0xfbbf 0xeb9e 0x9b79 0x8b58 0xbb3b 0xab1a 0x6ca6 0x7c87 0x4ce4 0x5cc5 Item 0x80 0x81 0x82 0x83 0x84 0x85 0x86 0x87 0x88 0x89 0x8a 0x8b 0x8c 0x8d 0x8e 0x8f 0x90 0x91 0x92 0x93 0x94 0x95 0x96 0x97 0x98 0x99 0x9a 0x9b 0x9c 0x9d 0x9e 0x9f 0xa0 0xa1 0xa2 0xa3 CRC value 0x9188 0x81a9 0xb1ca 0xa1eb 0xd10c 0xc12d 0xf14e 0xe16f 0x1080 0x00a1 0x30c2 0x20e3 0x5004 0x4025 0x7046 0x6067 0x83b9 0x9398 0xa3fb 0xb3da 0xc33d 0xd31c 0xe37f 0xf35e 0x02b1 0x1290 0x22f3 0x32d2 0x4235 0x5214 0x6277 0x7256 0xb5ea 0xa5cb 0x95a8 0x8589 Item 0xc0 0xc1 0xc2 0xc3 0xc4 0xc5 0xc6 0xc7 0xc8 0xc9 0xca 0xcb 0xcc 0xcd 0xce 0xcf 0xd0 0xd1 0xd2 0xd3 0xd4 0xd5 0xd6 0xd7 0xd8 0xd9 0xda 0xdb 0xdc 0xdd 0xde 0xdf 0xe0 0xe1 0xe2 0xe3 CRC value 0xd94c 0xc96d 0xf90e 0xe92f 0x99c8 0x89e9 0xb98a 0xa9ab 0x5844 0x4865 0x7806 0x6827 0x18c0 0x08e1 0x3882 0x28a3 0xcb7d 0xdb5c 0xeb3f 0xfb1e 0x8bf9 0x9bd8 0xabbb 0xbb9a 0x4a75 0x5a54 0x6a37 0x7a16 0x0af1 0x1ad0 0x2ab3 0x3a92 0xfd2e 0xed0f 0xdd6c 0xcd4d 0x24 0x25 0x26 0x27 0x28 0x29 0x2a 0x2b 0x2c 0x2d 0x2e 0x2f 0x30 0x31 0x32 0x33 0x34 0x35 0x36 0x37 0x38 0x39 0x3a 0x3b 0x3c 0x3d 0x3e 0x3f 0x64e6 0x74c7 0x44a4 0x5485 0xa56a 0xb54b 0x8528 0x9509 0xe5ee 0xf5cf 0xc5ac 0xd58d 0x3653 0x2672 0x1611 0x0630 0x76d7 0x66f6 0x5695 0x46b4 0xb75b 0xa77a 0x9719 0x8738 0xf7df 0xe7fe 0xd79d 0xc7bc 0x64 0x65 0x66 0x67 0x68 0x69 0x6a 0x6b 0x6c 0x6d 0x6e 0x6f 0x70 0x71 0x72 0x73 0x74 0x75 0x76 0x77 0x78 0x79 0x7a 0x7b 0x7c 0x7d 0x7e 0x7f 0x2c22 0x3c03 0x0c60 0x1c41 0xedae 0xfd8f 0xcdec 0xddcd 0xad2a 0xbd0b 0x8d68 0x9d49 0x7e97 0x6eb6 0x5ed5 0x4ef4 0x3e13 0x2e32 0x1e51 0x0e70 0xff9f 0xefbe 0xdfdd 0xcffc 0xbf1b 0xaf3a 0x9f59 0x8f78 0xa4 0xa5 0xa6 0xa7 0xa8 0xa9 0xaa 0xab 0xac 0xad 0xae 0xaf 0xb0 0xb1 0xb2 0xb3 0xb4 0xb5 0xb6 0xb7 0xb8 0xb9 0xba 0xbb 0xbc 0xbd 0xbe 0xbf The initial value of CRC is 0xFFFF. 0xf56e 0xe54f 0xd52c 0xc50d 0x34e2 0x24c3 0x14a0 0x0481 0x7466 0x6447 0x5424 0x4405 0xa7db 0xb7fa 0x8799 0x97b8 0xe75f 0xf77e 0xc71d 0xd73c 0x26d3 0x36f2 0x0691 0x16b0 0x6657 0x7676 0x4615 0x5634 0xe4 0xe5 0xe6 0xe7 0xe8 0xe9 0xea 0xeb 0xec 0xed 0xee 0xef 0xf0 0xf1 0xf2 0xf3 0xf4 0xf5 0xf6 0xf7 0xf8 0xf9 0xfa 0xfb 0xfc 0xfd 0xfe 0xff 0xbdaa 0xad8b 0x9de8 0x8dc9 0x7c26 0x6c07 0x5c64 0x4c45 0x3ca2 0x2c83 0x1ce0 0x0cc1 0xef1f 0xff3e 0xcf5d 0xdf7c 0xaf9b 0xbfba 0x8fd9 0x9ff8 0x6e17 0x7e36 0x4e55 0x5e74 0x2e93 0x3eb2 0x0ed1 0x1ef0 Note: CRC does not directly check the table in Appendix 1, but is calculated according to the algorithm. The table in Appendix 1 is the table called during the calculation process. This table is used in the CRC algorithm source code. The CRC check algorithm of the module is CRC-CCITT (0xFFFF), namely CRC-16/CCITT-FALSE 16WPS 文字