LG LVR-001 VR Gen3 Module For Refrigerator User Manual

LG LVR-001 VR Gen3 Module For Refrigerator

VR Gen3 Module User Manual for Refrigerator

Product Information

The VR Gen3 Module is a Wi-Fi module designed for use with refrigerators. It features ARM Dual Cortex-M4, WLAN: Real-M300, IEEE 802.11b/g/n 2.4Ghz, hardware-based AES-128/192/256 encryption support, RTOS-based integrated SW development environment support, and Bluetooth LE 4.2. It allows for refrigerator control through server-based natural language voice recognition. The input power can be DC 12V or DC 5V, and the mic. spec is 2Ch. Analog MEMS Mic. The speaker is 1.5W / 4 ohm.

Major Features and Specifications

• ARM Dual Cortex-M4
• WLAN: Real-M300, IEEE 802.11b/g/n 2.4Ghz
• Hardware-based AES-128/192/256 encryption support
• RTOS-based integrated SW development environment support
• Supports Bluetooth LE 4.2
• Refrigerator control through server-based natural language voice recognition
• Input power : DC 12V or DC 5V
• Mic. spec: 2Ch. Analog MEMS Mic.
• Speaker: 1.5W / 4 ohm

Hardware Configuration

The VR Gen3 Module features a block diagram that shows the UART communication with refrigerator PCBA via CN201. For other internal communication, refer to block diagram.

Electrical Characteristics

The VR Gen3 Module has absolute maximum ratings of 18V for supply voltage, 6V for input voltage, and 17dBm for typical WIFI output power. It can withstand ESD voltages up to 1000V Human Body Model (HBM) and up to 450V CDM (Charge Device Model). Recommended operation condition is at a supply voltage of 12V, operating temperature of 5°C to 85°C.

Current Consumption

Data shows the power consumption in a scenario where the voice recognition module is in operation mode and the voice recognition function is used. Conditions include Tamb=25°C, VCC=12V.

Condition| Power Consumption| Output Power Value (based on WLAN module’s antenna port Typ.
output)
---|---|---
Normal mode| |

Product Usage Instructions

Before using and installing the VR Gen3 Module, be sure to read the safety precautions in the user manual to protect the safety of users and installers and prevent property damage. After reading the user manual, keep it in a place where the user can see it at any time.

Interface

The VR Gen3 Module uses UART communication with refrigerator PCBA via CN201. For other internal communication, refer to the block diagram.

Package Specification

The package includes the VR Gen3 Module and a mechanical overview of the Wi-Fi module circuit board. Refer to the package specification for more details.

Introduce

Summary

LVR-001 is a module that supports Wi-Fi, BLE wireless communication, refrigerator voice recognition and artificial intelligence processing and is designed to operate independently. It supports multiple interfaces and has the advantage of being able to connect various external devices.
In addition, it has high performance based on CPU and has specialized functions for artificial intelligence, so it can be applied to home appliances that use artificial intelligence. It can operate as the Wi-Fi module allows you to connect with the voice recognition server.

Major Features and Specifications

1. ARM Dual Cortex-M4
2. WLAN: Real-M300, IEEE 802.11b/g/n 2.4Ghz
3. Hardware-based AES-128/192/256 encryption support
4. RTOS-based integrated SW development environment support
5. Supports Bluetooth LE 4.2
6. Refrigerator control through server-based natural language voice recognition
7. Input power: DC 12V or DC 5V
8. Mic. spec: 2Ch. Analog MEMS Mic.
9. Speaker: 1.5W / 4 Ω

Block Diagram

Command Information
UART communication with refrigerator PCBA via CN201. For other internal communication, refer to block diagram of FIg2-1.

Electrical Characteristics

Absolute maximum ratings

Table 3-1 Absolute maximum ratings. Exceeding one of the absolute maximum ratings will result in poor performance or It can be caused damage.

Electro Static Discharge (ESD)
The LVR-001 can withstand ESD voltages up to 1000 V Human Body Model (HBM).According to JESD22-A114, JESD22-A115, it can withstand up to 450 V CDM (Charge Device Model).

Recommended Operation Condition
Table 3-2 Recommended operation condition

Current Consumption
This is the data measuring power consumption in a scenario where the voice recognition module is in operation mode and the voice recognition function is used.
Condition : Tamb=25oC, VCC=12 V

Table 3.4 Power consumption in Normal mode. *Output power value is based on WLAN module’s antenna port Typ. output

Antenna Characteristics(WLAN, Bluetooth Antenna)

Condition: antenna port radiation test of WLAN module VCC= 12 V, Temp= 0 to +70C, covered with shield-can.

Table 3-5 RF Characteristics

Frequency(MHz)| Efficiency (%)| Avg. Gain(dBi)| Peak Gain(dBi)
---|---|---|---
2400| 66.79| -1.75| 1.06
2442| 70.83| -1.5| 1.57
2485| 50.17| -3.0| 0.2

Interface

Figure 4-1 LVR-001(Voice recognition Module) Connector option for connection of external Interface

| Connector type| Description
---|---|---
CN201| 6 pin 2.00 mm pin header| Power Supply, UART
CN203| 3 pin 2.00 mm pin header| MIC input(#1)
CN204| 3 pin 2.00 mm pin header| MIC input(#2)
CN212| 2 pin 2.00 mm pin header| SPK

Package Characteristics

Mechanical Characteristics of LVR-001 PCB

Regulatory Statement (FCC)

• Part 15.19 Statement
  This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. this device may not cause harmful interference, and
2. this device must accept any interference received, including interference that may cause undesired operation.

• Part 15.105 Statement (Class B)
  This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
  These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

  • Reorient or relocate the receiving antenna.
  • Increase the separation between the equipment and the receiver.
  • Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.

• Part 15.21 Statement
  Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment. This device must not be co-located or operating in conjunction with any other antenna or transmitter.

• Responsible Party Information (Supplier’s Declaration of Conformity)
  LG Electronics USA
  1000 Sylvan Avenue Englewood Cliffs
  New Jersey, United States, 07632

Regulatory notice to host manufacturer according to KDB 996369 D03 OEM Manual v01

List of applicable FCC rules
This module has been granted modular approval as below listed FCC rule parts.
– FCC Rule parts 15C(15.247)

Summarize the specific operational use conditions
The OEM integrator should use equivalent antennas which is the same type and equal or less gain then an antenna listed in this instruction manual.

RF exposure considerations
The module has been certified for integration into products only by OEM integrators under the following condition:

• The antenna(s) must be installed such that a minimum separation distance of at least 20 cm is maintained between the radiator (antenna) and all persons at all times.
• The transmitter module must not be co-located or operating in conjunction with any other antenna or transmitter except in accordance with FCC multi-transmitter product procedures.
• Mobile use
  As long as the three conditions above are met, further transmitter testing will not be required.
  OEM integrators should provide the minimum separation distance to end users in their end-product manuals.

Antennas list
This module is certified with the following integrated antenna.

• Type: chip type
• Max. peak Antenna gain
  BT, WIFI Ant: 1.57 dBi (2402 – 2480 MHz)(2412 – 2462 MHz)
  Any new antenna type, higher gain than listed antenna should be met the requirements of FCC rule 15.203 and 2.1043 as permissive change procedure.

Label and compliance information

End Product Labeling
The module is labeled with its own FCC ID and IC Certification Number. If the FCC ID and IC Certification Number are not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. In that case, the final end product must be labeled in a visible area with the following:

• Contains FCC ID: BEJ-LVR001
• Contains IC: 2703N-LVR001

Information on test modes and additional testing requirements
OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed (for example, digital device emissions, PC peripheral requirements, the additional transmitter in the host, etc.).

Additional testing, Part 15 Subpart B disclaimer
The final host product also requires Part 15 subpart B compliance testing with the modular transmitter installed to be properly authorized for operation as a Part 15 digital device.

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