阅读说明：本技术 一种手持式热像仪及手持式热像仪快速出图方法 (Handheld thermal imager and rapid production method thereof ) 是由 陈�峰 胡晓明 卢清晓 于 2018-05-23 设计创作，主要内容包括：本发明公开了一种手持式热像仪及手持式热像仪快速出图方法。所述手持式热像仪包括：红外热成像传感器(1)；模数转换模块(2)；FPGA芯片(3)；显示屏和DSP芯片(5)；所述FPGA芯片(5)用于接收来自所述DSP芯片(5)的8bit数字视频信号；所述显示屏直接与所述FPGA芯片(3)连接；其中,当FPGA芯片(5)没有检测到来自所述DSP芯片的数字视频信号时,所述FPGA芯片(5)读取存储的8Bit数字视频信号；将读取出的数字视频信号在所述显示屏上显示。在本发明的手持式热像仪中,在DSP芯片没有启动时,通过FPGA芯片直接驱动显示屏进行出图。从而,能够实现快速出图。(The invention discloses a handheld thermal imager and a rapid production method of the handheld thermal imager. The handheld thermal imager includes: an infrared thermal imaging sensor (1); an analog-to-digital conversion module (2); an FPGA chip (3); a display screen and a DSP chip (5); the FPGA chip (5) is used for receiving an 8bit digital video signal from the DSP chip (5); the display screen is directly connected with the FPGA chip (3); when the FPGA chip (5) does not detect the digital video signal from the DSP chip, the FPGA chip (5) reads the stored 8-Bit digital video signal; and displaying the read digital video signal on the display screen. In the handheld thermal imager, when the DSP chip is not started, the display screen is directly driven by the FPGA chip to produce images. Thus, a quick drawing can be realized.)

1. A handheld thermal imager, comprising: an infrared thermal imaging sensor (1); an analog-to-digital conversion module (2); an FPGA chip (3); a display screen and a DSP chip (5), wherein,

the infrared thermal imaging sensor (1) is used for acquiring image information of a target scene and outputting an analog video signal;

the analog-to-digital conversion module (2) is connected with the infrared thermal imaging sensor (1) and the FPGA chip (3) and is used for receiving an analog video signal from the infrared thermal imaging sensor (1) and outputting a 14bit digital video signal;

the FPGA chip (5) is connected with the display screen and the DSP chip (5) and is used for receiving 8-bit digital video signals from the DSP chip (5);

the display screen is directly connected with the FPGA chip (3) to receive and display the 8-Bit digital video signal from the FPGA chip (3);

when the FPGA chip (5) does not detect the digital video signal from the DSP chip, the FPGA chip (5) reads the stored 8-Bit digital video signal; carrying out resolution scaling processing on the read digital video signal; and displaying the video signal after the zooming processing on the display screen.

2. The handheld thermal imager according to claim 1, characterized in that the FPGA chip (3) performs ISP processing on the 14bi digital video signal, the ISP processing including non-uniform correction and image automatic gain control; the image automatic gain control realizes the self-adaptive mapping from a 14-bit digital video signal to an 8-bit digital video signal, and the FPGA chip (3) stores the 8-bit digital video signal processed by the ISP.

3. The handheld thermal imager according to claim 2, characterized in that the FPGA chip (3) outputs the stored 8-bit digital video signals in a format other than the 8-bit digital video signals in synchronization to the DSP chip (5) for processing; and the DSP chip (5) processes the 8bit digital video signal, and transmits the signal back to the FPGA chip (3), and the FPGA chip (3) further processes the signal and then transmits the signal to a display screen for displaying.

4. The handheld thermal imager according to claim 1, further comprising an auxiliary module connected with the DSP chip (5) and comprising: the device comprises a 6-axis gyroscope module (61), a WIFI module (62), a USB module (63) and a GPS module (64).

5. The handheld thermal imager according to claim 1, characterized in that the display screen comprises an OLED screen (4) and/or a CVBS screen (7).

6. The handheld thermal imager according to claim 1, characterized in that the analog-to-digital conversion module (2) is arranged independently of the external thermal imaging sensor (1) and the FPGA chip (3), and the analog-to-digital conversion module (2) is connected between the external thermal imaging sensor (1) and the FPGA chip (3); or

The analog-to-digital conversion module (2) is integrated in the external thermal imaging sensor (1) or integrated in the FPGA chip (3).

7. The handheld thermal imager according to claims 2-6, characterized in that after the handheld thermal imager is powered on, the FPGA chip (3) first moves the power-on LOGO from the external memory to the memory space built in the FPGA chip (3) for displaying the power-on state, and after the display screen configuration is completed, the power-on LOGO is transmitted to the display screen.

8. The handheld thermal imager according to claim 7, characterized in that the buffer space for the output data of the DSP chip (5) is a memory space built in the FPGA chip (3), and the memory space for the startup LOGO buffer and the buffer space for the output data of the DSP chip (5) are shared memory spaces.

9. The handheld thermal imager according to claim 7, wherein after being turned on LOGO for display for 5S, the data stream is switched to the ISP-processed 8-bit digital video signal stored in the FPGA chip (3), and then the ISP-processed 8-bit digital video signal is directly transmitted to the display screen for display after passing through the OLED scaling module, the CVBS scaling module and the shooter superimposing module.

10. A rapid plotting method for a handheld thermal imager is characterized in that the handheld thermal imager comprises an infrared thermal imaging sensor (1); an FPGA chip (3); an OLED screen (4) and/or a CVBS screen (7); and a DSP chip (5), wherein,

the infrared thermal imaging sensor (1) is used for acquiring infrared image information of a target scene and is connected with the FPGA chip (3) so as to transmit the image information of the target scene to the FPGA chip (3);

the OLED screen (4) and/or the CVBS screen (7) are/is directly connected with the FPGA chip (3) to receive and display the image information processed by the FPGA chip (3);

the DSP chip (5) is connected with the FPGA chip (3) to perform signal interaction with the FPGA chip (3) and perform OSD information superposition on image information,

the quick mapping method comprises the following steps:

step 1, after starting up, displaying a starting-up LOGO on an OLED screen (4) and/or a CVBS monitor (7) when waiting for the FPGA chip (3) to configure the infrared thermal imaging sensor (1);

step 2, after the FPGA chip (3) is configured with an infrared thermal imaging sensor LOGO and an OLED screen (4) and/or a CVBS monitor (7), directly outputting data processed by the FPGA chip (3) to the OLED screen (4) and/or the CVBS monitor (7) for real-time image display;

and 3, after the DSP chip (5) is started and configured, the FPGA chip (3) and the DSP chip (5) interact to process image information together, the image information superposed with the OSD by the DSP chip (5) is transmitted back to the FPGA chip (3), and then the real-time image display superposed with the OSD is carried out on the OLED screen (4) and/or the CVBS screen (7).