A white flocculent aerial mycelium appeared on the surface of the bacterial bag material. Reasons: 1. Bacteria bag water content is low, moisturizing bacteria stage lack of air humidity. 2. After the bacteria were inoculated, the indoor concentration of carbon dioxide in the shoots was high and the ventilation was insufficient, which prolonged the time from vegetative growth of mycelium to reproductive growth. Countermeasures: 1. Adjust the medium moisture content. 2. Increase the relative humidity of air in the moisturizing and germination stage to prevent overgrown aerial mycelium and form pellicles. In addition, we must also do a good job of moisturizing and ventilation indoors during the budding stage. Second, after 3 days of fungal spores, no hyphae were recovered. Cause: The air in the environment of the reminder bud room is over-circulated, and the bag material surface cover is not covered. Countermeasures: Concentrate the treatment, and use a cold boiled water to lightly spray 2 to 3 times in 2 days to make the material surface wet, and then cover it after spraying for 10 minutes to keep the air between the cover and the material surface with high humidity. Third, the bag material surface was black and moist. Reasons: 1. Spray raw water directly on the material surface. 2. The film covers the material surface for a long time, causing the condensate on the film to drip back, causing the hypha to shrink and the material surface to become black. Countermeasures: Dig up the blackened culture material with a sterile knife and rehydrate the bacteria. Fourth, the mushroom bud discolored dead. Cause: The small water droplets on the material surface of the induction mushrooming stage failed to evaporate in time, causing the original base of the mushroom bud to be submerged in water and suffocate. Countermeasures: When there are small drops of water on the waiting surface, gradually increase the amount of ventilation in the room so that these small drops of water evaporate as soon as possible. The color of waterdrops is light yellow and normal when clear. If it is brown and turbid, it indicates that the bacteria species have been infected by bacteria. Fifth, the original base is densely packed with effective mushrooms. Reasons: Mainly caused by the asynchronous development of Flammulina velutipes. In order to suppress the opening of the umbrella, one-sided increase in the concentration of carbon dioxide, prematurely pull up the plastic film folded under the bag, or bagging too early, so that most of the mushroom bud because of not get enough oxygen to suffocate. Countermeasures: Different ventilation methods should be adopted according to different seasons and different cultivation environments. In the suppression stage, the ventilation of the room should be increased to make the mushroom buds grow taller. In the spring and summer season, the amount of indoor air circulation should be increased in the rainy season to maintain the relative humidity at 80% to 85%. Elevating fans blow air to ensure that every layer of air on the cultivation frame can fully flow. 6. There is a "swiss mushroom" with mushroom cap connected and a mushroom stalk flat. Causes: Insufficient ventilation in the mushroom house, and hyphae did not reach the standard of physiological maturity, the medium was too dry, and the strains were aging. Countermeasures: Use a simple CO2 meter to monitor the carbon dioxide content in different developmental stages of the fruiting body of the mushroom house. During the development of the fruiting body, it should receive light for 2 hours per day and be performed several times. Seven, mushroom buds are of different thicknesses. Cause: The bud suppression failed. Countermeasures: In the process of budding, it is necessary to frequently clear the buds and remove the particularly strong mushroom buds by hand. Eight, "water mushroom" appears. Cause: The relative humidity of the air in the mushroom house is high. Countermeasures: Reduce the humidity of the air in the mushroom house as much as possible. Fans are blown with a reciprocating vertical fan or a shaking head fan to enhance air convection. Adjust the proportion of good intake and exhaust volume. The fresh air to be replenished should be pre-cooled and dehumidified first, and air flow should be increased two days before harvest. Nine, open the umbrella during the development of mushroom buds. Reasons: 1. The quality of bacteria bags. If the mycelium is loose and the material is not tight, even if it is a mushroom, it is easy to open the umbrella. 2. Temperature, humidity, oxygen, and illumination are not coordinated during cultivation and management. Countermeasures: During the cultivation of bacteria bags, air convection must be strengthened to prevent the heat generated during the germination stage from dissipating. At the same time, check whether the moisture content of the culture material is lower than 50% or higher than 70%, and check whether the sterilization of bacteria bags is thorough. Is the grade of bacteria contaminated? When discriminating whether the tertiary bacteria are contaminated, tertiary bacteria and uninoculated bacterial pellets can be returned to PDA medium under aseptic conditions.
Low power display: the baby monitor, especially the monitoring terminal, must work continuously for a long time. Once the product is low in power, it cannot remind parents to charge it in time. When the power continues to be consumed until it is exhausted, the control terminal will be unable to continue to receive any signal.
Voice trigger prompt: Voice trigger means that once the monitoring terminal detects the noise caused by the abnormal behavior of infants or children, it will be displayed at the control terminal through the noise prompt lamp.
The transmission signal frequency can be adjusted: the monitoring end of the baby monitor provides audio and video digital signals to the control end by transmitting wireless signals. If the transmission frequency of the monitoring end is not selected properly, it will produce electromagnetic interference with other household appliances, digital equipment, etc., which will affect the normal use of the product. Therefore, it is necessary to select a baby monitor that allows users to adjust the frequency of the transmitted signal at the monitoring end.
Adjustable volume: a friendly baby monitor will provide a volume selection knob or button at the control end. When parents are in an environment with loud background sound, they can hear the activity sound of babies and children by turning up the volume; When it is late at night or in a quiet environment, the low volume will not affect the normal rest of the people around you when you are answering normally.
VOX function: VOX is the abbreviation of sound activation start. The monitor with VOX function is in standby mode under normal conditions, and the screen and horn stop working, thus reducing the energy consumption of the product; Once it is detected that the monitored object has an abnormal sound exceeding the set standard, it will immediately flash its alarm lamp at the control terminal or directly light up the screen, and simultaneously play the audio and video information sent by the monitoring terminal.
Digital signals and analog signals: baby monitors using digital signals, such as Baohushen baby monitors, will have better transmission efficiency and provide users with clearer sound and picture quality; Moreover, digital signals can be encrypted to prevent being intercepted and interpreted by other receivers, effectively protecting users' family privacy; The electromagnetic signal interference of digital signal will be lower than that of analog signal, so as not to affect the normal work of other household appliances and equipment.
Monitoring end extension: The baby monitor with a friendly user experience should allow users to use one control end to manage the activities of several monitoring ends at the same time, especially in some families with multiple children. This good scalability not only reduces the trouble of carrying multiple control ends at the same time, but also reduces the objective additional expenses for these families.
Temperature display: some products will have the function of realizing the current indoor temperature, and even can set a critical value. Once the room temperature exceeds or falls below the critical value, an alarm signal will be sent. This is a very considerate function for temperature sensitive newborn children or sick children.
Intercom function: The high-end baby monitor allows parents to have a direct conversation with the baby (child) at one end of the monitoring end through the control end, so that children who are alone can provide psychological comfort. If children have any temporary needs or words, they can be known without bothering the guardian to run to the child.
Signal range: theoretically, the signal sent by the monitoring terminal can be received by the remote control terminal, which is more convenient for users to use the baby monitor flexibly. Now more and more families live in large family rooms, even multi-storey villas, and the baby monitor with strong signal receiving ability provides these families with a more convenient way of use. Parents no longer need to set the room beside the children in order to see and hear their children's every move. They can even take the control terminal to go out for a short walk!
Power supply mode: The baby monitor with built-in battery can automatically switch to the battery power supply mode when the external AC power supply is suddenly stopped, so that the user will not be affected to continue to monitor the child in the power failure environment.
The performance of the Baby Monitor Security Camera
The performance of the baby monitor is reflected by its built-in parameters and function combination. The following shows some properties that a high-quality and applicable baby monitor should have. The requirements for baby monitors in this part apply to all audio/video, digital/analog home baby monitors and wireless baby monitors, and are not changed due to the combination mode of the monitoring end and the control end.
The size shall be as small as possible: the small baby monitor (monitoring end and control end) is more convenient to install and carry in the family.Low power display: the baby monitor, especially the monitoring terminal, must work continuously for a long time. Once the product is low in power, it cannot remind parents to charge it in time. When the power continues to be consumed until it is exhausted, the control terminal will be unable to continue to receive any signal.
Voice trigger prompt: Voice trigger means that once the monitoring terminal detects the noise caused by the abnormal behavior of infants or children, it will be displayed at the control terminal through the noise prompt lamp.
The transmission signal frequency can be adjusted: the monitoring end of the baby monitor provides audio and video digital signals to the control end by transmitting wireless signals. If the transmission frequency of the monitoring end is not selected properly, it will produce electromagnetic interference with other household appliances, digital equipment, etc., which will affect the normal use of the product. Therefore, it is necessary to select a baby monitor that allows users to adjust the frequency of the transmitted signal at the monitoring end.
Adjustable volume: a friendly baby monitor will provide a volume selection knob or button at the control end. When parents are in an environment with loud background sound, they can hear the activity sound of babies and children by turning up the volume; When it is late at night or in a quiet environment, the low volume will not affect the normal rest of the people around you when you are answering normally.
VOX function: VOX is the abbreviation of sound activation start. The monitor with VOX function is in standby mode under normal conditions, and the screen and horn stop working, thus reducing the energy consumption of the product; Once it is detected that the monitored object has an abnormal sound exceeding the set standard, it will immediately flash its alarm lamp at the control terminal or directly light up the screen, and simultaneously play the audio and video information sent by the monitoring terminal.
Digital signals and analog signals: baby monitors using digital signals, such as Baohushen baby monitors, will have better transmission efficiency and provide users with clearer sound and picture quality; Moreover, digital signals can be encrypted to prevent being intercepted and interpreted by other receivers, effectively protecting users' family privacy; The electromagnetic signal interference of digital signal will be lower than that of analog signal, so as not to affect the normal work of other household appliances and equipment.
Monitoring end extension: The baby monitor with a friendly user experience should allow users to use one control end to manage the activities of several monitoring ends at the same time, especially in some families with multiple children. This good scalability not only reduces the trouble of carrying multiple control ends at the same time, but also reduces the objective additional expenses for these families.
Temperature display: some products will have the function of realizing the current indoor temperature, and even can set a critical value. Once the room temperature exceeds or falls below the critical value, an alarm signal will be sent. This is a very considerate function for temperature sensitive newborn children or sick children.
Intercom function: The high-end baby monitor allows parents to have a direct conversation with the baby (child) at one end of the monitoring end through the control end, so that children who are alone can provide psychological comfort. If children have any temporary needs or words, they can be known without bothering the guardian to run to the child.
Signal range: theoretically, the signal sent by the monitoring terminal can be received by the remote control terminal, which is more convenient for users to use the baby monitor flexibly. Now more and more families live in large family rooms, even multi-storey villas, and the baby monitor with strong signal receiving ability provides these families with a more convenient way of use. Parents no longer need to set the room beside the children in order to see and hear their children's every move. They can even take the control terminal to go out for a short walk!
Power supply mode: The baby monitor with built-in battery can automatically switch to the battery power supply mode when the external AC power supply is suddenly stopped, so that the user will not be affected to continue to monitor the child in the power failure environment.
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Shenzhen Fuvision Electronics Co., Ltd. , https://www.szsolarcamera.com