Dingtek DF702 User manual

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DF702 Operating Instructions
V1.0
Date:2018-10-15

Beijing Dingtek Technology Corp., Ltd. Tel:[phone]
http://www.dingtek.com E-mail: [e-mail]
Room A209, Flounder Business Park, Shunbai Road 12, Chaoyang District, Beijing, China 100022 Page 2
Index
1 Overview......................................................................................................................................... 3
2 Package Contents............................................................................................................................3
3 Equipment structure...................................................................................................................... 4
4 Technical Parameters.....................................................................................................................6
5 LoRa version testing.......................................................................................................................6
5.1 Use the gateway and network server provided by our company................................... 6
5.1.1 Preparation for Testing............................................................................................6
5.1.2 Function test............................................................................................................. 8
5.1.3 Actual installation.................................................................................................. 12
5.2 Use Your Own Network Server and Gateway................................................................. 12
5.2.1 Preparation for Testing..........................................................................................12
5.2.2 Functional Test....................................................................................................... 12
5.2.3 Actual installation.................................................................................................. 12
6 NB version testing........................................................................................................................ 13
6.1 Prepare for testing............................................................................................................ 13
6.2 Function test...................................................................................................................... 13
7 GPRS/WCDMA version................................................................................................................ 13
7.1 Prepare for testing............................................................................................................ 13
7.2 Function test...................................................................................................................... 14

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1 Overview
The DF702 series detector is a smart trash detector that can detect the empty
state of the trash, whether it is on fire, whether it is dumped, and it can also
detect the battery level of this equipment. And we can provide corresponding
application platform and data interface (API) for customers to test or integrate.
2 Package Contents
The packaging picture is shown in Figure 2.1
Figure 2.1
Parts are shown in Table 2-1 and Figure 2.2:
Part
name
specification
Quantity
Note
TTL
Serial tool
1
Used to modify device
parameters, debug devices or
device upgrades
cable
3
Used to connect TTL to the
device
Screws
M3*80 40mm
3
For installing equipment
device
parts

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Table2-1
图2.2
3 Equipment structure
External structure diagram:
thread
magnet
round ，
20*3,mm
1
Used to restart the device
Screws
cable
TTL
magnet

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Figure 3.1
Figure 3.2
Three screw holes
for mounting the
device
Three screws
fixing the shell
Label indicating device
version information, ID
information, and serial
number
Ultrasonic probe for
detecting the distance from
the surface of the probe to
the surface of the trash.

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4 Technical Parameters
Detector principle: ultrasonic @ 112kHz
Detection distance: 2000mm (vertical)
Blind area: 150mm
Height error: 3mm
Temperature error: 2°C
Angle error: 2°C (optional)
Battery: Built-in non-rechargeable lithium battery, 7000mAh @ 3.6V,
Lifespan: 4 hours to upload data, use 5 years
Operating temperature: -20 ~ +70°C
Storage temperature: -40 ~+85°C
Protection level: IP66
Data upload interval:
Sensor detection time: It is detected once every 10 minutes by default. When
the detected state (full) and the last state change, the data is uploaded. After
uploading the data, the device enters a sleep state, otherwise the data is not
uploaded. (This time can be modified through serial port or application platform
delivery.)
Fixed upload time: Upload data every four hours by default. (This time can be
modified through serial port or platform delivery.) This time will not detect the
time conflict.
5 LoRa version testing
5.1 Use the gateway and network server provided by our
company
5.1.1 Preparation for Testing
Step 1 Connect to the gateway's power supply and network cable according to
the gateway's instruction manual (the gateway has been configured in advance,

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you do not need to configure it again);
Note: We will email you the gateway manual before shipping.
Step 2 Open the device and use a screwdriver to open the device as shown in
Figure 5.1 and Figure 5.2.
Step 3 Connect the device to the power supply and connect the battery to the
circuit board. (The default is not connected to the power supply. Please connect
the power supply before use.) The yellow marks are shown in Figure 5.3 and .
Note: After connecting the power supply, please use a screwdriver to fix the shell
of the device and tighten it to achieve a waterproof effect; then the sensor
function can be tested.
Figure 5.1

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Figure 5.2
Figure 5.3
5.1.2 Function test
* Height test (full/empty test)
Open these
three screws
to open the
device

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Cardboard items can be used for simulated height testing before actual
installation.
Testing process:
Step 1 Leave the device stationary or fixed
Step 2 Referring to Figure 5.4 or Figure 5.5, place the item above or below the
probe of the device and block the probe (white part) so that d>15cm and d<30cm.
This can be used to simulate the situation where the trash is full;
(Note: 1 Due to the blind area of the ultrasonic probe itself, accurate data should
be measured when the distance d>15cm.)
(Note: The sensor can detect the distance d from the device probe to the object.
This distance is also a sign that the trash can be empty or full. The sensor detects
the distance d from the device probe to the item is less than 30cm (30cm is the
default alarm threshold, this value can be When the serial port or the platform is
modified downwards), the trash bin is full, otherwise the display is not full.)
Method 1: Place the object over the probe
Figure 5.4
Method 2: Place the Object Under the Probe
Figure 5.5
×：Indicates that the location of the device and the object is correct;
θ
θ1
θ
θ1
θ1
×
√
θ=90°is the best
d
×
×
×
θ1
Equipment probe
Measured object
√
θ=90°is the best

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√：Indicates that the location of the device and the object is not correct;
Step 3 Use the magnet to restart the device
To restart the device: The position of the opposite side of the white marked pin
is the magnetic switch position. The magnet can be restarted by placing the
magnet in the magnetic switch position for 3 s and then removing the magnet.As
shown in Figure 5.6.(Each time the device is restarted, the device will report the
data once.)
Note:
1 When the device is restarted, there is no free LED or sound outside the
casing to indicate that the restart is successful.
2 But when the restart is successful, you can see that a led on the main circuit
board will be on, and when the data is sent, the led will go out.
Figure 5.6
Step 4 Observe the data of the previous step 3 on the application platform
provided by our company. At this time, the trash should display full. (Note: We
will provide you with a platform test account after shipment.)
Step 5 Move the object and increase the distance d to make d>30. After 10
minutes (this time is the time from the previous data), the data can be observed
again. At this time, the trash can display is not full.
Repeat steps 4 and 5 to test empty/full status and different height values;
Note:

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1 The device will detect once in 10 minutes. If no change of status is detected,
no data will be uploaded. Only when the status change is detected will the data
be uploaded. State change means: full->dissatisfaction, or dissatisfaction->full.
2 If the status does not change, the data upload interval is fixed at 4 hours.
3 Do not move the device during the test so as not to affect the accuracy of the
data.
4 Some objects have some absorption of ultrasonic waves, such as foam items or
carpets. So if you encounter such items, it may affect the high degree of accuracy.
5 The sensor probe must not be tilted more than 8° from the object.
6 Note that the measurement range is 150-2000mm, and the measured data
beyond the range will be inaccurate.
7 Each time the device is restarted, data is reported once.
* Fire detection
Function Description: When the device detects that the temperature is higher
than 75℃(the default threshold can be modified through the serial port or the
platform), it can wake up the device and send the alarm data, otherwise it will
not send the alarm data.
This function is not easy to simulate high temperature environment. You can
modify the alarm threshold to test this function.
However, by changing the alarm temperature T to be less than the temperature of
the device's environment, you can see that the device reported fire alarm data.
Note: This parameter can be modified by referring to the DF702 Configuration
Manual.
Example: When the ambient temperature of the equipment is 15°C, and the
temperature alarm threshold is changed to 10°, the equipment will upload fire
alarm data.
* Battery detection
Function description: When the battery power is lower than 20% of the total
power (the default value can be modified through the serial port or the platform),
low battery alarm data will be sent.
You can reduce the alarm threshold to perform a simulation test. If you change
the alarm threshold to 100%, you can see that when the device uploads data, it
will upload battery alarm data. Note: This parameter can be modified by
referring to the DF702 Configuration Manual.
* Fall detection (only enhanced version with this function)
When the trash dump angle θ is greater than 15, as shown in Figure5.8, the alarm
data is uploaded, otherwise the alarm data is not uploaded.

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Figure 5.7 Figure 5.8
Before the installation, the test can be simulated by pouring the device.
For example, if you tilt the device so that the tilt angle is greater than 15°, you
can see that the trigger device reports the dump alarm data.
Note: The standard version does not have this feature, only enhanced version
with this feature.
5.1.3 Actual installation
5.2 Use Your Own Network Server and Gateway
5.2.1 Preparation for Testing
Step 1 Confirm that the frequency band of the gateway is the same as the
frequency band of the device.
Step 2 Add devices and gateways on the network server to add related
information for the device: APB mode needs to be: Devaddr, Nwkskey, and
Appskey information, and OTAA mode needs to be: Deveui, Appeui, and APPkey
information. This information has been printed on the label.注：不同的 The
network server may have different requirements, and specific information is
filled in according to the requirements of the web server.
Step 3 Open the device, referring to step 5.1.1 step 2;
Step 4 Connect the power supply, referring to step 5.1.1 of step 3.
5.2.2 Functional Test
Refer to 5.1.2 Functional Test
5.2.3 Actual installation
Refer to 5.1.3 Actual installation
θ3
θ3=0
θ3>15°

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6 NB version testing
6.1 Prepare for testing
Step 1 requires you to prepare the NB card, and confirm that the NB card is
enabled and can be used normally, and the test environment covers the NB
network.
Step 2 Open the device. For the method, refer to Step 2 in 5.1.1.
Step 3 Install the NB card: Place the NB card outward in the slot, as shown in
Figure 6.1 and figure6.2. Press the card manually, as shown in Figure 6.3.
Figure 6.1 Figure 6.2 Figure 6.3
Step 4 Connect the power supply. Refer to step 3 in 5.1.1 for the method.
6.2 Function test
Refer to 5.1.2 Functional Test Method Test Equipment
And the data can be viewed through our data interface (API).
Note:
1 IP and port can be modified through serial or downlink instructions.
2 If you need product agreement or API, please contact our sales staff.
7 GPRS/WCDMA version
7.1 Prepare for testing
Step 1 requires that you prepare to support 2G/3G mobile phone cards and
confirm that the data network of the card can be used normally.
Step 2 Open the device with a screwdriver. Refer to Step 2 in 5.1.1.

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Step 3 Install the 2G/3G mobile phone card. Install the mobile phone card
according to Step 3 in 6.1.
Step 4 Connect the power supply. Refer to step 3 in 5.1.1 for the method.
7.2 Function test
Refer to 5.1.2 Functional Test Method Test Equipment.
You can log in our test account or data interface (API) to view data.
Note:
1 The default upload address is our server.
2 You can modify the IP address and port number through the downlink or serial
port.
3 If you are using it abroad, configure the APN for the device in advance before
testing. You do not need to configure the APN separately after you use it in the
country. Please refer to the product agreement for the format of the instruction.