When the portable pump is driving for a long distance, it is generally difficult to find a place to inflate when the wheel pressure is insufficient. Take a portable pump with you, plug the power cord of the pump into the cigarette lighter, and you can inflate the car tires. The inflation process only takes a few minutes. Generally, this portable air pump can only be used in small cars, not buses and trucks, in case of danger caused by insufficient pressure. Before use, be sure to pull up the brakes of the car to block the wheels and prevent slipping; Since the transmission pressure can reach 100 Pa, users should avoid tire inflation explosion, as long as the number on the barometer reaches the recommended air pressure value of the inflated object. The air pump should be placed in a dry place, and should not contact with liquids such as rain and snow to prevent electric shock. At the same time, the air pump can not be used continuously for more than 15 minutes, and can only be used again after cooling. In addition to map instructions and real-time traffic reports, some car navigators can also provide GPS global positioning. In addition, Bluetooth, DVD, electronic dog and other functions are often cited in the car navigation system. At present, some models on the market are equipped with car navigation systems when they leave the factory. A few days ago, GO-420, a new car GPS navigation product launched by Shanghai General Electronic Technology Co., Ltd., attracted wide attention from consumers as soon as it came out. In terms of hardware and software configuration, pq2 GO-420 adopts a high-level configuration: Samsung 400 MHz and 128MB memory ensure the overall running speed and stability of the product. The Windows CE 4.2 system with this configuration is simple to operate and easy to use. In terms of GPS positioning and navigation, pq2 GO-420 adopts the most advanced civil-grade satellite positioning modules-American SiRF Star III GPS global positioning module and Ruitu Wanfangdaotong electronic map. The received satellite signals are quite stable, and the automatic positioning can be completed in a few seconds. The positioning accuracy is less than 10M, and the data is continuously updated to 1 time/second, thus realizing fast and accurate positioning and navigation. The electronic map of Ruitu Wanfangdaotong adopted by pq2 G0-420 is the most comprehensive electronic map in China, covering 3/kloc-0 provinces (cities/autonomous regions), 333 prefecture-level cities and 2,859 counties in China seamlessly, achieving the goal that all parts of the country can navigate through satellite positioning technology except military restrictions. And full voice navigation, intersections, intersections, viaducts and even speed points. When traveling far away from home, a portable spare fuel tank is essential. If you carry a certain amount of gasoline with you, you are not afraid to break down in the wild. If the self-driving destination does not supply ethanol gasoline, the spare fuel tank is even more necessary. Generally, the partition of the spare fuel tank will not affect the refueling, because the fuel tank is relatively wide to prevent shaking. Special attention: When filling the fuel tank, after the fuel tank cover is closed, tighten the big screw and then turn it back slightly, generally about 30 degrees, which can reduce the pressure in the fuel tank after the gasoline volatilizes. When parking, you can loosen the big screw first and then tighten it. When you pour the oil out of the oil tank, loosen this big screw completely. This is called "lifting the cover". When you pour the oil in the oil tank, you must pay attention to fire prevention, and no kindling is allowed! The oil in the tank should be added as soon as possible, not for a long time. When the automobile emergency starter is in the field, the battery power is low. What should I do if the starter rotor burns out? Portable car starters can come in handy at this time. As long as the positive starting clip of the starter is connected to the positive electrode of the automobile battery and the negative electrode is connected to any unpainted metal piece, the mechanical device of the automobile engine can automatically ignite. Special attention: a high-performance maintenance-free lead-acid battery with built-in 17 ampere-hour (AH) capacity-"ah" is one of the indicators reflecting the battery capacity, and it is defined as the time to discharge according to the specified current. The battery with the same voltage has large ampere-hours and large capacity; The battery with the same ampere hour has high voltage and large capacity. Usually, the capacity of a battery is expressed by voltage and ampere-hour. (General test method: use 0.85A to discharge electrical appliances, and the discharge time must be more than 20 hours, the longer the better. ) In the walkie-talkie travel activities, it is most important for multiple cars to walk together, command and dispatch, and keep in step, which is the guarantee for the safe and smooth activities. In the go on road trip activity, the car is equipped with walkie-talkies that can inform each other of the road conditions during driving; During the long journey, you can also remind each other and talk to each other, which can maintain a good driving state and atmosphere and avoid the possible adverse consequences of long-term driving or fatigue driving. Where there is no network signal coverage, the mobile phone is no different from a brick. At this time, the walkie-talkie has become incredible. It can not only keep in touch with scattered parties, but also save a lot of mobile roaming fees when you travel abroad. This free intercom mode allows young people who advocate individuality and freedom to enjoy communication anytime and anywhere. Whether from the functional or economic point of view, walkie-talkies are playing an increasingly important role in self-driving travel. Car-mounted hot and cold incubator A simple car-mounted incubator can solve the problem of food storage. Just plug the interface directly into the car cigarette lighter, and you can use electric energy to keep the temperature in the box (cold storage or heat preservation) and keep the food temperature for a long time. This car-mounted incubator can store refrigerated items at will, and it is large, portable and practical, and can hold up to 2 liters of coca-cola bottle. Especially suitable for group outing, sports, camping, long-distance travel, food and beverage preservation, cold storage or heat preservation, but also a good helper for food transportation in catering industry. Equipped with 20 ice packs, the temperature can be kept below 8 degrees for 40 hours, which is suitable for the transportation and short-term storage of plasma, vaccines and biological products.

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