I couldn't help it and took apart my thermal imaging camera.

littleshrimp

I couldn't help it and took apart my thermal imaging camera. [Copy link]

 

This is a Xinsite HT-19 thermal imaging camera I bought last year. The resolution is pretty good, 320*240. I have been playing with night vision cameras on cars for a while, but I have hardly used this Xinsite camera.

Let’s take a look at a disassembly video first:

This thermal imaging camera looks large and solid.

If you take them all apart, you'll see that there are quite a lot of components.

However, the main functions related to thermal imaging are all in this core, and everything else is designed to be used in conjunction with it.

There is no model number on this core, so I am not sure who produced it. However, the materials used are very similar to the internal structure of SEEK Compact, so it may be their product. The core uses NXP's LPC43S30 microcontroller. C1012859_804457D6B04516B1E04A20BE1F228DA6.pdf (7.01 MB, downloads: 11)

2022-7-24 15:13 上传

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In addition to this thermal imaging module, the whole machine also has an OV7725 image sensor, which can realize the mixed display of two images. However, this thermal imaging only superimposes the two images and does not align the images.

The main components are concentrated on the back of the PCB.

There is a display interface and a few buttons on the front.

The main control is Allwinner's A33, a quad-core Cortex-A7 processor, C2845168_D964EBEADE94678AE0D8C980539E3047.pdf (3.07 MB, downloads: 3)

2022-7-24 15:00 上传

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.

Its function is to read the data from the thermal imaging core through the USB HOST and then further process the data. I guess the color palette should also be implemented on the A33, which means that the thermal imaging core only outputs grayscale data. I can't verify this now.

The memory is Hynix's H5TQ4G63CFR, a 4Gb DDR3 chip. C390898_308D43F39BE4558172C1F4077A8E18AD.pdf (431.57 KB, downloads: 1)

2022-7-24 15:04 上传

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This thermal imaging camera supports taking photos, and the storage chip is a Samsung 4Gb eMMC, KLM46G1FETE. C500273_A1F8D9AB8D436807C64BA418B82CB7E3.pdf (355.77 KB, downloads: 1)

2022-7-24 15:07 上传

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The power management chip used is X-Power's AXP223, 1491969142296 (1).pdf (2.37 MB, downloads: 2)

2022-7-24 15:09 上传

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There is a DS18B20 temperature sensor inside. C9753_1505374149135969228.pdf (484.15 KB, downloads: 1)

2022-7-24 15:11 上传

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The display model is YP32008A

Because the thermal imaging core uses a relatively hard glue in the connector part, I am afraid that it cannot be restored after removing the circuit board, so I will not disassemble the core part.

lugl4313820

This thing is quite expensive, it's very exciting to disassemble it! Let's see if there are any other difficult things to disassemble at home. I look forward to the excitement.

秦天qintian0303

What is the resolution of the sensor?

dcexpert

Can you put it back?

qwqwqw2088

Just dismantled it.

Why is there a blue inner shell inside the outer shell?

littleshrimp

lugl4313820 posted on 2022-7-24 16:15 This thing is quite expensive, and it was very exciting to dismantle it! Let's see if there are any other difficult things to dismantle at home. I look forward to the excitement continuing

I have dismantled almost everything that can be dismantled.

littleshrimp

Qintianqintian0303 posted on 2022-7-24 21:00 What is the resolution of the sensor?

320*240

littleshrimp

dcexpert posted on 2022-7-24 21:27 Can it be put back?

I can install it back, but I don't want to install it back. Now I have changed it to the mobile version.

littleshrimp

qwqwqw2088 posted on 2022-7-24 22:42 I just took it apart. Why is there a blue inner shell inside the outer shell?

It should have a fixed effect

秦天qintian0303

littleshrimp 发表于 2022-7-24 23:10 320*240

Thermal imaging is expensive.

bigbat

The original poster's OV7725 is a normal camera, how can it output infrared images? Is there any special filter or special infrared sensor?

wangerxian

littleshrimp posted on 2022-7-24 23:11 It can be installed back, but I don’t want to install it back. Now I have changed it to a mobile version

What does mobile version mean? Plug into the charging port of the mobile phone?

littleshrimp

Qintianqintian0303 posted on 2022-7-25 08:19 Then this thermal imaging will be very expensive

The official price is more than 3,000

littleshrimp

bigbat posted on 2022-7-25 08:59 OV7725 is a normal camera, how can it output infrared images? Is there any special filter or special infrared sensor?

Dual-spectrum application: one visible light OV7725 and one dedicated thermal imaging sensor

littleshrimp

wangerxian posted on 2022-7-25 09:02 What does mobile version mean? Plug it into the charging port of the mobile phone?

https://en.eeworld.com/bbs/thread-1211919-1-1.html

freebsder

There won't be any extra parts after putting it back together, right?

从昆仑以观慨

Want to see what it looks like after being modified on a mobile phone?

littleshrimp

Published by Kunlun Yiguankai on 2022-9-14 09:36 Want to see what it looks like after being modified on a mobile phone?

Thermal imaging reverse upgrade - Comprehensive technical exchange - Electronic Engineering World - Forum (eeworld.com.cn)

从昆仑以观慨

littleshrimp posted on 2022-9-14 09:53 Thermal Imaging Reverse Upgrade - Comprehensive Technical Exchange - Electronic Engineering World - Forum (eeworld.com.cn)

It's really amazing. I feel that nowadays, instead of having so many telephoto, wide-angle and macro cameras, it would be better if mobile phones could move more towards thermal imaging.

littleshrimp

Published from Kunlun on 2022-9-15 15:02 It is really amazing. I feel that nowadays, instead of having so many telephoto, wide-angle and macro cameras, it is better to go more in the direction of thermal imaging.

Thermal imaging should become more popular if the cost is further reduced