With the continuous update and increase of household appliances, the number of sockets in the home is also increasing. When the socket also plays with intelligence, is it an idea to ascend to heaven? It can only be said that human beings are becoming more and more lazy, and technology is becoming more and more developed. At present, there are a wide range of smart socket products on the market. In the process of purchasing, consumers just look at the appearance, convenience of operation, and practical functions. So this product brought to you today will combine many of the above factors, and how strong the different kitten intelligent steward is. Next, we will deeply analyze the four aspects of appearance, disassembly, modification, and experience for you to appreciate.

1： Unpacking

The original package of Kitten Smart Housekeeper is sealed in a hard paper box. The front is the brand logo of this product. When a single person picks up the paper box, the contents will slowly appear in front of you. The paper box can be easily opened by gravity and atmospheric pressure.

The contents are also very simple: a warranty card, a quick start guide and a socket. The socket is wrapped in a box with soft materials around to avoid accidental damage and bump during transportation and delivery.

The product specifications are as follows:

Size: 100.5 * 55.5 * 31 (mm). Working voltage: AC100~240V 50/60Hz .

Maximum load power: 10A/2200W USB output: 5V/1A

WIFI standard: 2.4G Hz, 802.11b/g/n. Contact copper: phosphor copper outer layer is polished and nickel plated

The shell of the product is made of V0 grade safety flame-retardant PC material.

At first glance, the kitten intelligent housekeeper product really looks like a cartoon kitten. The edges of the product are rounded and smooth to the touch, add The eyes are bright, energetic, and super cute. With beard, ears, nose and tongue, I can hardly see where the tail is! Below it is a standard and safe five hole socket, which can be inserted into two pin and three pin electrical equipment respectively. Considering that the white appearance of the product is not resistant to dirt, a special protective measure is taken. The whole outer layer is also adhered with a transparent protective film, which can be used after being torn off.

Turning over, the tail hid here. The three core plug here is the power input adapter of the intelligent housekeeper. It is usually plugged into the wall socket for use, without additional charger adapters or anything.

Three dimensional product introduction, this is not the other three dimensions. The top is a standard USB 2.0 socket for charging external mobile phones. Everyone is wondering if this is the same function as the USB charging port on the Xiaomi patch board? I don't see anything special. If you think so, it's wrong. Here, we will sell a pass first, and then continue to explain in the disassembly link.

At the bottom is a small night light function composed of three white light-emitting tubes, which is convenient for occasionally getting up to pick up things or going to the bathroom at night, and can avoid directly turning on the light and affecting family sleep. Is manual operation required? Of course not. They all say that they are intelligent butlers. They provide considerate service and reach the standard in one step. As long as you feel the movement of the human body together, light up the night light immediately.

There is a microswitch on the right side, which can be touched with your finger. The function of this button is also very simple. Short press can manually switch the power on or off status of the five hole socket, which is available for external appliances. Offline use mode is not required through mobile phones. With the green light on the face of the kitten intelligent housekeeper, a clear sound will be heard inside. Indicates that the circuit has been connected. Don't think there is something wrong with the socket. The sound is just the sound made by the relay when it is working. If solid state components are used, there should be no such sound. Of course, solid state does not refer to hard disk memory! Long press 4S to restore the factory settings and connect the network configuration.

2： Disassembly

The kitten intelligent housekeeper does not have a set screw fixed by the hook form of the upper and lower shells. Take out the hard warping piece of the four piece set for disassembly and slide it over the edge to completely disassemble it.

The shell is made of flame retardant PC material, which is hard. The mold shall be clean and tidy without excessive burrs and foreign matters. There are four hooks on the left and four hooks on the right. Two at the top and one at the bottom. The internal circuit board is assembled with a stylus structure of two pieces (sys. board and power board). Effectively use the environment layout design with small internal space.

Look closely at the kitten's binocular structure! This light sensor was originally hidden inside the black cover of the right eye. This part can detect the effect of ambient brightness. The left eye cannot be opened! This is a human infrared pyroelectric sensor. What's the function? As the name implies, it is a sensor that responds to the infrared reflection of the human body. With the cooperation of both eyes, the kitten housekeeper can understand what to do. For example, in the daytime environment, no matter how the human body moves, it will not light the night light, but it will be very sensitive at night. It's like a smart kitten hiding in a corner, always watching the owner's every move.

The three night lights are evenly distributed below the socket. In order to prevent light leakage from the socket hole during working hours, the product also uses black isolation foam above the night light. The lamp beads are not powerful enough to light the environment in the dark night, and will automatically turn off after a period of delay.

The upper board (sys. board) is also distributed with five infrared emission lamps and one infrared receiving lamp element. What is this for? I believe many people have guessed that it can be used as a remote control. That's right! One on the left and right sides, two on the front and one on the top. In total, 5 infrared emission lamps can meet the requirements of remote control appliances in all corners of the room. It can be remotely controlled at will. This can solve many problems: not afraid that the remote control cannot be found, the mobile phone is a good helper. How to use the experience link first and then introduce.

There are many chips distributed on sys. board. The green circuit board uses double-sided boards for wiring. Please introduce the main chip names and functions!

U1: (MT7620N) intelligent router chip, along with The popularity of the routing chip of MediaTek is more and more known. The MT7620 is used as the master chip for the middle pole routing, Xiaomi routing and ASUS RT-N14. The upgraded MT7620A has dual frequency (2.4G+5G) function. The smart butler only supports 2.4G. The wireless bandwidth is 300 Mbps, and the concealed dual antenna structure is symmetrically distributed. Obviously, this is not only a smart socket, but also a butler with built-in wireless relay function!

Next to it is a flash memory chip U7 (25L1283SF)

U36 (BISS0001). This is a common pyroelectric infrared sensor processing chip. Integrated operational amplifier, voltage comparator, delay timer, digital analog ASIC for signal processing with multiple sensors.

U41 (STC15W408AS). The high-speed A/D comparator is built in the macro crystal 51 serial communication MCU.

The back is a U5（ EM68B16CWQH-25H ）Memory chip.

When the upper plate is removed, a black mylar sheet can be seen, which is a material with excellent high temperature resistance and insulation. Because the pin of the light sensor is too long, it almost punctures the mylar chip during assembly. Note that the transformer coil of the switching power supply is below the mylar chip. In case of short circuit collision between the two, the consequences will be more serious. Take out the diagonal pliers and cut the pins to eliminate hidden dangers.

Unplug one pin of the fixed power board and unscrew two screws of the fixed socket to take it out. The socket is made of copper sheet, phosphor copper, and its outer layer is polished and nickel plated. It looks like a thief. It should be noted that this can only provide electrical appliances with power below 2200W. If you accidentally exceed this power, will it burn? Many people have this doubt, and the answer is no. Later experience will be explained.

There are many discrete components on the front, and the power supply is designed with lightning surge switch circuit. Choose some representative ones to say.

A lightning protection VR resistor.

An isolation capacitor eliminates EMI interference signals.

One switching transformer TDB494.

One relay HF32FA-G.10A/250VAC that controls the on-off of the socket. It is this part that makes the noise when opening the socket switch mentioned above.

Voltage lifting power IC. LNK304DG

U3 (HLW8012) This is a power metering chip. The power is driven by AC-DC non isolated power supply, and the power and power consumption of appliances connected to the socket can be calculated from time to time.

The back of the power board is relatively simple. The copper clad plate is partially tinned for better heat dissipation and high current.

R17 (0.002) is the current sampling resistance of the power metering chip.

Switch tube U1 (SC1161D0) works together with switch transformer. Voltage range: AC100~240V, suitable for use in any country.

3： Modification

1. Expand USB port.

Considering that the USB jack output by the kitten housekeeper is a little small, it's better to add one if there is room for it! The redundant USB socket is designed in parallel and converted into two hole output. The insulation sheet shall be pasted outside for protection, and the corresponding position of the shell shall be opened.

Use ammeter and load to check the working status of USB output port: the maximum output of a single port is 1A/5V. When dual ports work, the total current of automatic distribution output current will not exceed 1A, which is very stable.

2. Built in camera module

It was mentioned earlier in the appearance section that the USB port is not only used to charge the mobile phone, but also can expand other plug-ins through the USB function: such as the RF remote control plug-in, temperature and humidity plug-in, gas detection plug-in, and the non drive camera monitoring module. This is mainly due to the realization of the built-in powerful intelligent control linkage function. Xiaomi patch board should not have this function yet! In consideration of the low concealment of the external camera, a module is built to increase the monitoring function.

Prepare a 200w driverless camera module, and show how to cut off the redundant mic circuit and power interface. The outer layer is wrapped with high-temperature insulating tape and the corresponding wiring (+3.3V. D -. D+. GND) is as thin as a hairline, which takes a lot of effort and time.

After testing with an ammeter, the power consumption of the camera is about 80 ma. It still saves electricity. There will be no problem if it is powered on for a long time.

Connect the signal pin (yellow, green) of the power board and the power supply pin (red, black) of the sys. board.

Fix the position of the camera module and make holes at the corresponding positions of the housing. Find the kitten's tongue and make a small hole. From afar, I won't notice that there is still a camera inside!

Concealed work has been completed. Power on and see the effect! The camera is invisible during the day. I can't see it at night, can I!

Fourth: Experience

Smart products can not be separated from APP control, and this kitten butler also needs to download Maoha software. Ten functions are available. First, plug in the kitten smart housekeeper mobile phone and open the software for network configuration. You can use it after adding devices.

1. Socket function: you can press the right microswitch in manual mode, or you can control it by mobile phone. Additional timing function is added. This is very convenient. When the phone is normally charged, insert the charger and turn on the timer to design the time. Don't worry about overcharging. For TV sets, set-top boxes and other electrical appliances, the power is automatically cut off within the set time to save power. There is no need to worry about power consumption caused by false standby or real standby.

2. Night light mode. The night sports mentioned above will automatically light up the night light. It will automatically close after setting the delay time. It plays the role of people coming and people going.

3. Electricity statistics. The power parameters and power consumption of the inserted appliances can be displayed all the time. The power of the electrical appliance on the socket can be automatically set to automatically disconnect the output power when the load is too high. Will the electrical appliances above 2200W burn on/off? Obviously not.

4. Voice control. Say the device you want to turn on or off to the phone, and the kitten will understand the order from the owner. The languages are Mandarin, Cantonese and Henan dialect. It seems that this kitten can understand a lot of languages.

5. Infrared remote control. The remote control of the software with TV, air conditioner and other equipment can learn through the user-defined learning function. Immediately clone the remote control functions that are almost identical. A very humanistic experience.

6. Monitoring function. Open the camera interface and input the bound mailbox. When abnormal activities are detected, it will automatically take pictures and upload them to the mailbox. This process all happened at the first time without the illegal intruders' awareness. It's so smart and convenient.

seven Wireless relay function. No matter it is placed in the living room or horizontal, it is no longer afraid of signal loss across several walls. It also includes visitors' exclusive WIFI, with two sets of hot passwords that can be set separately, without worrying about password disclosure.

8. Access the Internet through the relay WIFI hotspot of the kitten intelligent housekeeper, which can block most web advertising and video advertising functions.

9. Intelligent control linkage function. By setting the corresponding timing/brightness/presence/temperature/humidity and other conditions, the switch/remote control and other actions can be automatically started independently after the conditions are met.

10. USB expansion function. It can not only charge mobile phones and other devices, but also detect and remind them through the extended plug-ins.

Summary:

There are too many playable places in the whole product experience, with small shape and powerful functions. It is a great honor for a smart butler, who can remotely control all the equipment and appliances in the home through mobile phones. The kitten intelligent housekeeper is the master of your needs. Of course, there are also some areas to be improved. For example, whether it is possible to increase the output USB port and use the solid-state/thyristor module to increase the working life of the socket to make the kitten quieter. The color of the socket light is green like that of the connected WIFI, so it is difficult to distinguish. Can it be replaced with a red light. The switch status cannot be set through the mobile phone when the USB port is powered on all the time. Whether the camera setting interface can input the mobile phone number or QQ number for real-time alarm reminding, so as to let the owner know that there is an abnormal situation at the first time.