支援32GB SD Card, 可調整觸發距離, 可連網之危害告知器 - v2

***此說明中所用的危害告知器為v2版本***

Revision History: 
- v1 @ 2020/3/24: 第一版


功能說明:

本裝置透過超音波偵測環境中之物體, 當物體與本裝置間之距離小於預設值時將觸發本裝置之告警功能. 本裝置之觸發距離可以30公分為單位進行調整, 最遠可達300公分.

本裝置被觸發時可透過下列方式發出警報:

1. 透過內建 / 外接喇叭播放預先存放在SD Card (註1) 中之音聲訊息;
2. 透過外接之警示燈 (透過乾接點) 提供視覺訊息.
3. 透過網際網路對個人或群組發出E-Mail / Telegram等圖文訊息 (註2).

與使用紅外線感應之裝置相比, 由於超音波具有防強光 (太陽), 指向性, 波束窄, 及可測量與物體間距離之特性, 因此, 本裝置將可比使用紅外線感應之裝置更有效的防止誤動作之發生.

註1: 本裝置支持最大容量為32GB之Micro SD Card, 您需事先錄製欲播放之語音並將其存放在SD Card上後插入本裝置中. 若您需要能夠於現場立即錄音, 立即播放的版本, 請點擊下方網址.
https://wei48221.blogspot.com/2019/07/40.html

註2: 需有網際網路連線並向本公司換購相對應之軟體.

支援32GB SD Card, 可調整觸發距離, 可連網之安全告警裝置 - v1

***此說明中所用的機器為v1版本***

本裝置透過超音波偵測環境中之物體, 當物體與本裝置間之距離小於預設值時將觸發本裝置之告警功能. 本裝置之觸發距離可以30公分為單位進行調整, 最遠可達300公分.

本裝置被觸發時可透過下列方式發出警報:

1. 預先存放在SD Card中之語音 ;
2. 警示燈 (透過乾接點);
3. E-Mail*;
4. 即時訊息 (Telegram)*.

註: 發送E-Mail及即時訊息之功能需搭配網際網路使用.

與使用紅外線感應之裝置相比, 由於超音波具有指向性, 波束窄, 及可測量與物體間距離之特性, 因此, 使用超音波之本裝置可更有效的防止誤動作之發生.

註:
本裝置支持最大容量為32GB之Micro SD Card, 您需事先錄製欲播放之語音並將其存放在SD Card上後插入本裝置中. 若您需要能夠錄音的版本, 請點擊下方網址.

https://wei48221.blogspot.com/2019/07/40.html

可錄放40秒語音, 可調整觸發距離, 可連網之安全告警裝置

本裝置透過超音波偵測環境中之物體, 當物體與本裝置間之距離小於預設值時將觸發本裝置之告警功能. 本裝置之觸發距離可以30公分為單位進行調整, 最遠可達300公分.

本裝置被觸發時可透過下列方式發出警報:

1. 預錄語音 (最長40秒);
2. 警示燈 (透過乾接點);
3. E-Mail*;
4. 即時訊息 (Telegram)*.

註: 發送E-Mail及即時訊息之功能需搭配網際網路使用.

與使用紅外線感應之裝置相比, 由於超音波具有指向性, 波束窄, 及可測量與物體間距離之特性, 因此, 使用超音波之本裝置可更有效的防止誤動作之發生.

註:
本裝置支持即時錄音 (最長40秒) 功能, 錄下之語音儲存在非揮發性記憶體中, 不因斷電而消失. 若您需要更長之語音播放時間, 請選用使用SD卡之版本 (請點擊下方網址).

https://wei48221.blogspot.com/2019/07/32gb-sd-card.html

Internet connected ultrasonic alarm device with adjustable trigger range and SD Card support

This is a quick overview of a device that gives audio and visual alarm when it's triggered. The sensor used for object detection is an ultrasonic sensor with a triggering range from 1cm to 300cm and a beam angle of 30 degree from the point of origin. This triggering range is adjustable at 30cm interval via a dial in the front of the device and the set triggering range is visible via the 10 segments LED on top of the device.

The combination of narrower beam angle and adjustable triggering range makes this device an ideal candidate for applications that need to minimize false alarm.

Note,

This device uses SD Card (storage capacity up to 32GB) as its storage. The audio to be playback needs to be pre-recorded and stored in the SD Card. If you need to be able to record new audio on the spot and the audio is less than 40 seconds, please refer to the link below.

https://wei48221.blogspot.com/2019/06/internet-connected-ultrasonic-alarm.html.

Internet connected ultrasonic alarm device with adjustable trigger range and 40 seconds of audio record / playback time

This is a quick overview of a device that gives audio and visual alarm when it's triggered. The sensor used for object detection is an ultrasonic sensor with a triggering range from 1cm to 300cm and a beam angle of 30 degree from the point of origin. This triggering range is adjustable at 30cm interval via a dial in the front of the device and the set triggering range is visible via the 10 segments LED on top of the device.

The combination of narrower beam angle and adjustable triggering range makes this device an ideal candidate for applications that need to minimize false alarm.

Note,

This device allows instant recording of new audio (up to 40 seconds) and the recorded audio is stored in flash memory for playback. If you want longer playback time, please refer to the link below for a similar device that uses SD Card as its storage.

https://wei48221.blogspot.com/2019/06/internet-connected-ultrasonic-alarm_6.html.

Solution For Control & Monitor Equipment In Outdoor Enclosures

Here is a solution developed for a client with thousands of outdoor equipment enclosures.

The client’s needs:

• Remotely monitor and regulate the temperature inside each enclosure;
• Remotely switch on / off individual equipment in the enclosure;
• Protect circuit breaker from continuous tripping;
• Able to reset the tripped breaker remotely;
• Remotely monitor the status of the backup battery;
• Provide comprehensive overview at a central location;
• Provide field work groups with an overview of the enclosure status in their respective working area;
• Send notice to the responsible work group upon the occurrence of an event that requires the group’s attention / intervention.

Below is a quick overview of the solution developed for the client.

IOT Fish Tank

For the past couple of months I've been working on a project that allows me to monitor fish tank and feed the fishes.

The things that I want to do are the followings:

- Feed fishes automatically based on preset schedule or manually by pressing a button on the controller;

- Measure water temperature and water level;

- Measure the ambient light, temperature and humidity;

- Check on the fishes remotely;

- Be able to switch on / off peripherals such as lamp / pump / heater / etc. remotely.

After months of trials and errors and several revision of hardware and software, I am happy to present the result below.