Background

       With the development of society, the buildings in the city are getting higher and higher, and more and more buildings are built, and more and more work and life will be completed in skyscrapers. The unique architectural style of skyscrapers requires a whole set of intelligent systems to keep it running. In the entire intelligent system, environmental monitoring is the core of this system's long-distance travel.

   Functional Requirements

       ⚪ Indoor air quality monitoring, effective monitoring of conventional air quality parameters and harmful gases.

       ⚪ Real-time monitoring of temperature in buildings.

       ⚪  Monitoring of overflowing trash cans in buildings.

       ⚪ Monitoring of toilet health in buildings.

       ⚪ Monitoring of the residual amount of hand sanitizer and tissue machine in the building.

       ⚪ Smoking testing in public areas.

       ⚪ Monitoring of vital signs of elderly living alone.

       ⚪ The number of people in apartments and hotels is monitored.

   Teature Design

       Hengyi Technology has accumulated rich experience in the field of wireless transmission and sensors.

            ⚪ Wireless transmission

                       Facing the large-scale sensor data transfer of buildings, the long-distance wireless transmission technology of Hengyi is used to transfer the data of various sensors to the building management platform. Hengyi's wireless technology uses a combination of LORA, 2G/3G/4G/5G/CAT1 (mobile network), and Ethernet. Use LORA locally to transmit sensor data to the gateway, which in turn transmits the data to the platform via a mobile network or Ethernet.

            ⚪ Sensor

                       Hengyi Technology has obtained many patents in the development and application of TOF, temperature and humidity, and gas sensors. In this scenario of smart buildings, a variety of sensors are used to achieve the role of environmental monitoring. For the residual monitoring of the tissue machine, the imminent measurement of the toilet squatting position, and the overflow monitoring of the trash can, the TOF sensor is used to realize. The temperature and humidity sensor developed by our company is used to monitor the temperature in the building. For air quality monitoring in buildings, use our air quality monitoring sensors.

            ⚪ Overall functional block diagram

                   

   Detailed implementation of functions

            ⚪ Air Quality Monitoring

                       Install air quality monitoring sensors in the office area, conference area, and corridor area of ​​the building to monitor the air quality in this area. When the air quality decreases, measures to improve the air quality can be taken to increase the comfort and health of the human body.

                        For some places where smoking is prohibited, install cigarette detection sensors to monitor whether anyone smokes.

            ⚪ Temperature and humidity monitoring

                         In the material storage places of the building, some places that are sensitive to temperature and humidity, use our company's temperature and humidity sensors to monitor.

            ⚪ Trash can monitoring

                     The garbage management of the building is also very important. When the garbage is full, it will cause serious sanitation problems if it is left for a long time. In the public area, our company's smart trash cans are used to monitor the overflow of garbage, and store the garbage in a closed manner to prevent the spread of odors. When the trash can is full, or the smell is relatively strong, the monitoring module will be sent to the monitoring platform through wireless technology, and the monitoring platform will take corresponding measures to solve the problem.

            ⚪  Hand sanitizer and tissue machine residual monitoring

                       In the public areas of the building, hand sanitizer and paper towels will be provided. The smart soap dispenser and smart paper towel function developed by our company can automatically report the remaining amount of hand sanitizer and paper machines.

            ⚪ Critical Area Access Control

                      In some areas of the building, people are not allowed to visit, or some doors and windows are not allowed to be opened. Our company's door sensor will play a role in monitoring the safety of these areas. When there are some unconventional operations in these areas, the door sensor alarm will send The platform reports to the police.

            ⚪ Toilet squatting monitoring

                      The distribution of people on each floor of the building is different, and the needs for toilets are also different. Some floors have too many people and the toilets are not enough, and some floors have too many people and there are many vacancies in the toilets. We provide toilet squatting position monitoring sensors, which can report the squatting position usage to the building inspection platform. Users can then check the availability of toilets through the platform.

            ⚪ Monitoring of vital signs of elderly living alone

                     For residential buildings, install the vital sign detector developed by our company in the room where the elderly live alone. This sensor uses 60G millimeter-wave radar to monitor the elderly's breathing, whether the heartbeat is normal, and whether the elderly falls while fully protecting privacy.

            ⚪ Personnel monitoring in apartments and hotels

                        For some places where buildings are used as apartments and hotels, it is necessary to know whether there are people in the room and how many people there are, but cameras cannot be installed. In these places, the millimeter-wave radar living monitoring sensor developed by our company is used, and one is installed in each room to monitor whether there are people in the room and how many people there are.

   Detailed introduction of key products

            ⚪ Multifunctional Wireless Gateway

                 

Parameter		Describe
Master	Master	Industrial grade CPU, main frequency 540MHZ
	DDR	64M Byte, the highest frequency supports up to 360MHz
	FLASH	32M Byte
Wireless	LORA	430~434MHZ, others can be customized 913~918MHz
	WIFI	2.4GHZ, support IEEE802.11b/g/n
	2G/3G/4G/5G	FDD-LTE/TDD-LTE/DC-HSPA+/HSPA+/HSPA/WCDMA/TD-SCDMA/GSM/GPRS/EDGE
	SUB 1G（custom made）	430~434MHZ, others can be customized 866~918MHz
Hardware Parameters	Data interface	1 Ethernet interface, 1 WIFI, 1 2/3/4G, 1 RS485
	Supply Voltage	DC 6V~14V input; can be customized DC6-36V
	Working Environment	Working temperature -10℃~75℃, humidity 0%~90%RH
	Current Consumption	Working current: <200mA/12V, maximum current 500mA/12V
Software Agreement	Operating System	LINUX 3.4
	Network Protocol	IP,TCP,UDP,HTTP,HTTPS
	Wireless Protocol	LORA, WIFI protocol, ad-hoc network LORA protocol
	RS485	MOBUS, custom 485 communication protocol

 

            ⚪ Ambient Air Quality Monitoring

              

         This product is used for indoor air quality monitoring. The monitoring data includes CO2 (carbon dioxide), CH2O (formaldehyde), TVOC (volatile gas), PM2.5 and PM10

          Gas Parameters     

Sensor Type	Measurement Resolution	Measuring Range	Measurement Accuracy
CO2	1ppm	400ppm~5000ppm	±3%(50ppm内),其它±10%
CH2O	1ug/m3	0ug~2000ug/m3	±10%
TVOC	1ug/m3	0ug/m3~999ug/m3	±10%
PM2.5	1ug/m3	0ug/m3~999ug/m3	±10%
PM10	1ug/m3	0ug/m3~1000ug/m3	±10%

       Function Parameter

Project	Parameter	Remark
Operating Voltage	12V
Working Current	<350MA
Preheat Time	5 minutes
Operating Temperature	0℃~50℃
Working Humidity	15%RH-80％RH(no condensation)
Service Life	5年 (in air)
Communication Method	蓝牙	RS485,LORA,CAT1customizable
Size	φ120mm*42mm(diameter*height)
Weight	150mg
Installation Method	Ceiling installation

            ⚪ Ambient Air Quality Monitoring

                          

Project	Parameter	Remark
Operating Voltage	12V
Working Current	<350MA
Radar Band	66GmmWave
Operating Temperature	-20℃~70℃
Working Humidity	15%RH-80％RH(no condensation)
Communication Method	LORA	RS485,LORA,CAT1Customizable
Weight	150mg
Installation Method	Ceiling installation
Monitoring Content	People's breathing and heartbeat, movement trajectory, presence or absence of people